Home / 8,291.30-12,439.08-5,025.38

Finding the Fourth Proportional to 8,291.30, 12,439.08 and 5,025.38

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Solution

The fourth proportional to 8,291.30, 12,439.08 and 5,025.38 is: 7,539.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,291.30 : 12,439.08 = 5,025.38 : x
  2. Step 2: Convert to fraction form
    8,291.30/12,439.08 = 5,025.38/x
  3. Step 3: Cross multiply
    8,291.30x = 12,439.08 × 5,025.38
  4. Step 4: Simplify right side
    8,291.30x = 62,511,103.85
  5. Step 5: Solve for x
    x = 62,511,103.85/8,291.30
  6. Step 6: Final answer
    x = 7,539.36

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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.