Home / 16,659.29-22,989.20-9,105.56

Finding the Fourth Proportional to 16,659.29, 22,989.20 and 9,105.56

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Solution

The fourth proportional to 16,659.29, 22,989.20 and 9,105.56 is: 12,565.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,659.29 : 22,989.20 = 9,105.56 : x
  2. Step 2: Convert to fraction form
    16,659.29/22,989.20 = 9,105.56/x
  3. Step 3: Cross multiply
    16,659.29x = 22,989.20 × 9,105.56
  4. Step 4: Simplify right side
    16,659.29x = 209,329,539.95
  5. Step 5: Solve for x
    x = 209,329,539.95/16,659.29
  6. Step 6: Final answer
    x = 12,565.33

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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.