Home / 15,572.43-21,490.11-8,498.97

Finding the Fourth Proportional to 15,572.43, 21,490.11 and 8,498.97

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Solution

The fourth proportional to 15,572.43, 21,490.11 and 8,498.97 is: 11,728.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,572.43 : 21,490.11 = 8,498.97 : x
  2. Step 2: Convert to fraction form
    15,572.43/21,490.11 = 8,498.97/x
  3. Step 3: Cross multiply
    15,572.43x = 21,490.11 × 8,498.97
  4. Step 4: Simplify right side
    15,572.43x = 182,643,800.19
  5. Step 5: Solve for x
    x = 182,643,800.19/15,572.43
  6. Step 6: Final answer
    x = 11,728.66

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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.