Home / 13,654.91-20,456.12-8,374.52

Finding the Fourth Proportional to 13,654.91, 20,456.12 and 8,374.52

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Solution

The fourth proportional to 13,654.91, 20,456.12 and 8,374.52 is: 12,545.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,654.91 : 20,456.12 = 8,374.52 : x
  2. Step 2: Convert to fraction form
    13,654.91/20,456.12 = 8,374.52/x
  3. Step 3: Cross multiply
    13,654.91x = 20,456.12 × 8,374.52
  4. Step 4: Simplify right side
    13,654.91x = 171,310,186.06
  5. Step 5: Solve for x
    x = 171,310,186.06/13,654.91
  6. Step 6: Final answer
    x = 12,545.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.