Home / 16,231.29-22,399.19-9,159.21

Finding the Fourth Proportional to 16,231.29, 22,399.19 and 9,159.21

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Solution

The fourth proportional to 16,231.29, 22,399.19 and 9,159.21 is: 12,639.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,231.29 : 22,399.19 = 9,159.21 : x
  2. Step 2: Convert to fraction form
    16,231.29/22,399.19 = 9,159.21/x
  3. Step 3: Cross multiply
    16,231.29x = 22,399.19 × 9,159.21
  4. Step 4: Simplify right side
    16,231.29x = 205,158,885.04
  5. Step 5: Solve for x
    x = 205,158,885.04/16,231.29
  6. Step 6: Final answer
    x = 12,639.72

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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.