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Finding the Fourth Proportional to 8,753.71, 12,080.34 and 5,398.75

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Solution

The fourth proportional to 8,753.71, 12,080.34 and 5,398.75 is: 7,450.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,753.71 : 12,080.34 = 5,398.75 : x
  2. Step 2: Convert to fraction form
    8,753.71/12,080.34 = 5,398.75/x
  3. Step 3: Cross multiply
    8,753.71x = 12,080.34 × 5,398.75
  4. Step 4: Simplify right side
    8,753.71x = 65,218,735.58
  5. Step 5: Solve for x
    x = 65,218,735.58/8,753.71
  6. Step 6: Final answer
    x = 7,450.41

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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.