Home / 16,230.05-22,397.54-9,515.78

Finding the Fourth Proportional to 16,230.05, 22,397.54 and 9,515.78

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Solution

The fourth proportional to 16,230.05, 22,397.54 and 9,515.78 is: 13,131.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,230.05 : 22,397.54 = 9,515.78 : x
  2. Step 2: Convert to fraction form
    16,230.05/22,397.54 = 9,515.78/x
  3. Step 3: Cross multiply
    16,230.05x = 22,397.54 × 9,515.78
  4. Step 4: Simplify right side
    16,230.05x = 213,129,903.61
  5. Step 5: Solve for x
    x = 213,129,903.61/16,230.05
  6. Step 6: Final answer
    x = 13,131.81

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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.