Home / 8,289.29-12,425.96-5,319.42

Finding the Fourth Proportional to 8,289.29, 12,425.96 and 5,319.42

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Solution

The fourth proportional to 8,289.29, 12,425.96 and 5,319.42 is: 7,974.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,289.29 : 12,425.96 = 5,319.42 : x
  2. Step 2: Convert to fraction form
    8,289.29/12,425.96 = 5,319.42/x
  3. Step 3: Cross multiply
    8,289.29x = 12,425.96 × 5,319.42
  4. Step 4: Simplify right side
    8,289.29x = 66,098,906.82
  5. Step 5: Solve for x
    x = 66,098,906.82/8,289.29
  6. Step 6: Final answer
    x = 7,974.02

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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.