Home / 16,658.87-22,989.33-9,105.21

Finding the Fourth Proportional to 16,658.87, 22,989.33 and 9,105.21

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Solution

The fourth proportional to 16,658.87, 22,989.33 and 9,105.21 is: 12,565.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,658.87 : 22,989.33 = 9,105.21 : x
  2. Step 2: Convert to fraction form
    16,658.87/22,989.33 = 9,105.21/x
  3. Step 3: Cross multiply
    16,658.87x = 22,989.33 × 9,105.21
  4. Step 4: Simplify right side
    16,658.87x = 209,322,677.41
  5. Step 5: Solve for x
    x = 209,322,677.41/16,658.87
  6. Step 6: Final answer
    x = 12,565.24

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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.