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Finding the Fourth Proportional to 8,337.99, 12,506.99 and 3,142.65

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Solution

The fourth proportional to 8,337.99, 12,506.99 and 3,142.65 is: 4,713.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,337.99 : 12,506.99 = 3,142.65 : x
  2. Step 2: Convert to fraction form
    8,337.99/12,506.99 = 3,142.65/x
  3. Step 3: Cross multiply
    8,337.99x = 12,506.99 × 3,142.65
  4. Step 4: Simplify right side
    8,337.99x = 39,305,092.12
  5. Step 5: Solve for x
    x = 39,305,092.12/8,337.99
  6. Step 6: Final answer
    x = 4,713.98

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Similar ratio
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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.