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Finding the Fourth Proportional to 8,757.74, 13,123.11 and 4,310.30

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Solution

The fourth proportional to 8,757.74, 13,123.11 and 4,310.30 is: 6,458.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,757.74 : 13,123.11 = 4,310.30 : x
  2. Step 2: Convert to fraction form
    8,757.74/13,123.11 = 4,310.30/x
  3. Step 3: Cross multiply
    8,757.74x = 13,123.11 × 4,310.30
  4. Step 4: Simplify right side
    8,757.74x = 56,564,541.03
  5. Step 5: Solve for x
    x = 56,564,541.03/8,757.74
  6. Step 6: Final answer
    x = 6,458.81

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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.