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Finding the Fourth Proportional to 8,838.53, 12,200.85 and 6,321.65

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Solution

The fourth proportional to 8,838.53, 12,200.85 and 6,321.65 is: 8,726.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,838.53 : 12,200.85 = 6,321.65 : x
  2. Step 2: Convert to fraction form
    8,838.53/12,200.85 = 6,321.65/x
  3. Step 3: Cross multiply
    8,838.53x = 12,200.85 × 6,321.65
  4. Step 4: Simplify right side
    8,838.53x = 77,129,503.40
  5. Step 5: Solve for x
    x = 77,129,503.40/8,838.53
  6. Step 6: Final answer
    x = 8,726.51

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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.