Home / 11,534.48-15,917.74-6,818.76

Finding the Fourth Proportional to 11,534.48, 15,917.74 and 6,818.76

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Solution

The fourth proportional to 11,534.48, 15,917.74 and 6,818.76 is: 9,409.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,534.48 : 15,917.74 = 6,818.76 : x
  2. Step 2: Convert to fraction form
    11,534.48/15,917.74 = 6,818.76/x
  3. Step 3: Cross multiply
    11,534.48x = 15,917.74 × 6,818.76
  4. Step 4: Simplify right side
    11,534.48x = 108,539,248.80
  5. Step 5: Solve for x
    x = 108,539,248.80/11,534.48
  6. Step 6: Final answer
    x = 9,409.98

Related Problems

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Half scale
Find fourth proportional to 23,068.96, 31,835.48 and 13,637.52
Double scale
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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.