Home / 16,230.72-22,398.96-9,521.28

Finding the Fourth Proportional to 16,230.72, 22,398.96 and 9,521.28

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Solution

The fourth proportional to 16,230.72, 22,398.96 and 9,521.28 is: 13,139.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,230.72 : 22,398.96 = 9,521.28 : x
  2. Step 2: Convert to fraction form
    16,230.72/22,398.96 = 9,521.28/x
  3. Step 3: Cross multiply
    16,230.72x = 22,398.96 × 9,521.28
  4. Step 4: Simplify right side
    16,230.72x = 213,266,769.87
  5. Step 5: Solve for x
    x = 213,266,769.87/16,230.72
  6. Step 6: Final answer
    x = 13,139.70

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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.