Home / 14,678.31-20,251.13-8,304.15

Finding the Fourth Proportional to 14,678.31, 20,251.13 and 8,304.15

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Solution

The fourth proportional to 14,678.31, 20,251.13 and 8,304.15 is: 11,456.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,678.31 : 20,251.13 = 8,304.15 : x
  2. Step 2: Convert to fraction form
    14,678.31/20,251.13 = 8,304.15/x
  3. Step 3: Cross multiply
    14,678.31x = 20,251.13 × 8,304.15
  4. Step 4: Simplify right side
    14,678.31x = 168,168,379.67
  5. Step 5: Solve for x
    x = 168,168,379.67/14,678.31
  6. Step 6: Final answer
    x = 11,456.93

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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.