Home / 16,561.76-22,856.16-9,489.36

Finding the Fourth Proportional to 16,561.76, 22,856.16 and 9,489.36

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Solution

The fourth proportional to 16,561.76, 22,856.16 and 9,489.36 is: 13,095.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,561.76 : 22,856.16 = 9,489.36 : x
  2. Step 2: Convert to fraction form
    16,561.76/22,856.16 = 9,489.36/x
  3. Step 3: Cross multiply
    16,561.76x = 22,856.16 × 9,489.36
  4. Step 4: Simplify right side
    16,561.76x = 216,890,330.46
  5. Step 5: Solve for x
    x = 216,890,330.46/16,561.76
  6. Step 6: Final answer
    x = 13,095.85

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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.