Home / 8,456.08-12,680.51-2,909.99

Finding the Fourth Proportional to 8,456.08, 12,680.51 and 2,909.99

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Solution

The fourth proportional to 8,456.08, 12,680.51 and 2,909.99 is: 4,363.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,456.08 : 12,680.51 = 2,909.99 : x
  2. Step 2: Convert to fraction form
    8,456.08/12,680.51 = 2,909.99/x
  3. Step 3: Cross multiply
    8,456.08x = 12,680.51 × 2,909.99
  4. Step 4: Simplify right side
    8,456.08x = 36,900,079.34
  5. Step 5: Solve for x
    x = 36,900,079.34/8,456.08
  6. Step 6: Final answer
    x = 4,363.73

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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.