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Finding the Fourth Proportional to 8,977.38, 12,375.92 and 6,316.53

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Solution

The fourth proportional to 8,977.38, 12,375.92 and 6,316.53 is: 8,707.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,977.38 : 12,375.92 = 6,316.53 : x
  2. Step 2: Convert to fraction form
    8,977.38/12,375.92 = 6,316.53/x
  3. Step 3: Cross multiply
    8,977.38x = 12,375.92 × 6,316.53
  4. Step 4: Simplify right side
    8,977.38x = 78,172,838.37
  5. Step 5: Solve for x
    x = 78,172,838.37/8,977.38
  6. Step 6: Final answer
    x = 8,707.76

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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.