Home / 8,349.72-12,500.25-4,391.59

Finding the Fourth Proportional to 8,349.72, 12,500.25 and 4,391.59

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Solution

The fourth proportional to 8,349.72, 12,500.25 and 4,391.59 is: 6,574.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,349.72 : 12,500.25 = 4,391.59 : x
  2. Step 2: Convert to fraction form
    8,349.72/12,500.25 = 4,391.59/x
  3. Step 3: Cross multiply
    8,349.72x = 12,500.25 × 4,391.59
  4. Step 4: Simplify right side
    8,349.72x = 54,895,972.90
  5. Step 5: Solve for x
    x = 54,895,972.90/8,349.72
  6. Step 6: Final answer
    x = 6,574.59

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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.