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Finding the Fourth Proportional to 8,757.97, 12,086.25 and 4,779.34

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Solution

The fourth proportional to 8,757.97, 12,086.25 and 4,779.34 is: 6,595.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,757.97 : 12,086.25 = 4,779.34 : x
  2. Step 2: Convert to fraction form
    8,757.97/12,086.25 = 4,779.34/x
  3. Step 3: Cross multiply
    8,757.97x = 12,086.25 × 4,779.34
  4. Step 4: Simplify right side
    8,757.97x = 57,764,244.61
  5. Step 5: Solve for x
    x = 57,764,244.61/8,757.97
  6. Step 6: Final answer
    x = 6,595.62

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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.