Home / 15,553.10-21,463.36-8,479.52

Finding the Fourth Proportional to 15,553.10, 21,463.36 and 8,479.52

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Solution

The fourth proportional to 15,553.10, 21,463.36 and 8,479.52 is: 11,701.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,553.10 : 21,463.36 = 8,479.52 : x
  2. Step 2: Convert to fraction form
    15,553.10/21,463.36 = 8,479.52/x
  3. Step 3: Cross multiply
    15,553.10x = 21,463.36 × 8,479.52
  4. Step 4: Simplify right side
    15,553.10x = 181,998,990.39
  5. Step 5: Solve for x
    x = 181,998,990.39/15,553.10
  6. Step 6: Final answer
    x = 11,701.78

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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.