Home / 15,737.25-21,718.35-8,663.52

Finding the Fourth Proportional to 15,737.25, 21,718.35 and 8,663.52

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Solution

The fourth proportional to 15,737.25, 21,718.35 and 8,663.52 is: 11,956.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,737.25 : 21,718.35 = 8,663.52 : x
  2. Step 2: Convert to fraction form
    15,737.25/21,718.35 = 8,663.52/x
  3. Step 3: Cross multiply
    15,737.25x = 21,718.35 × 8,663.52
  4. Step 4: Simplify right side
    15,737.25x = 188,157,359.59
  5. Step 5: Solve for x
    x = 188,157,359.59/15,737.25
  6. Step 6: Final answer
    x = 11,956.18

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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.