Home / 11,271.56-15,555.30-6,235.76

Finding the Fourth Proportional to 11,271.56, 15,555.30 and 6,235.76

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Solution

The fourth proportional to 11,271.56, 15,555.30 and 6,235.76 is: 8,605.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,271.56 : 15,555.30 = 6,235.76 : x
  2. Step 2: Convert to fraction form
    11,271.56/15,555.30 = 6,235.76/x
  3. Step 3: Cross multiply
    11,271.56x = 15,555.30 × 6,235.76
  4. Step 4: Simplify right side
    11,271.56x = 96,999,117.53
  5. Step 5: Solve for x
    x = 96,999,117.53/11,271.56
  6. Step 6: Final answer
    x = 8,605.65

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Half scale
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Double scale
Find fourth proportional to 11,272.56, 15,556.68 and 6,236.76
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.