Home / 15,560.19-21,472.83-8,486.61

Finding the Fourth Proportional to 15,560.19, 21,472.83 and 8,486.61

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Solution

The fourth proportional to 15,560.19, 21,472.83 and 8,486.61 is: 11,711.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,560.19 : 21,472.83 = 8,486.61 : x
  2. Step 2: Convert to fraction form
    15,560.19/21,472.83 = 8,486.61/x
  3. Step 3: Cross multiply
    15,560.19x = 21,472.83 × 8,486.61
  4. Step 4: Simplify right side
    15,560.19x = 182,231,533.81
  5. Step 5: Solve for x
    x = 182,231,533.81/15,560.19
  6. Step 6: Final answer
    x = 11,711.40

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Double scale
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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.