Home / 11,272.91-15,556.47-6,236.75

Finding the Fourth Proportional to 11,272.91, 15,556.47 and 6,236.75

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Solution

The fourth proportional to 11,272.91, 15,556.47 and 6,236.75 is: 8,606.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,272.91 : 15,556.47 = 6,236.75 : x
  2. Step 2: Convert to fraction form
    11,272.91/15,556.47 = 6,236.75/x
  3. Step 3: Cross multiply
    11,272.91x = 15,556.47 × 6,236.75
  4. Step 4: Simplify right side
    11,272.91x = 97,021,814.27
  5. Step 5: Solve for x
    x = 97,021,814.27/11,272.91
  6. Step 6: Final answer
    x = 8,606.63

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Find fourth proportional to 5,636.46, 7,778.24 and 3,118.38
Half scale
Find fourth proportional to 22,545.82, 31,112.94 and 12,473.50
Double scale
Find fourth proportional to 11,273.91, 15,557.85 and 6,237.75
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.