Home / 8,220.40-12,332.68-2,377.52

Finding the Fourth Proportional to 8,220.40, 12,332.68 and 2,377.52

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Solution

The fourth proportional to 8,220.40, 12,332.68 and 2,377.52 is: 3,566.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,220.40 : 12,332.68 = 2,377.52 : x
  2. Step 2: Convert to fraction form
    8,220.40/12,332.68 = 2,377.52/x
  3. Step 3: Cross multiply
    8,220.40x = 12,332.68 × 2,377.52
  4. Step 4: Simplify right side
    8,220.40x = 29,321,193.35
  5. Step 5: Solve for x
    x = 29,321,193.35/8,220.40
  6. Step 6: Final answer
    x = 3,566.88

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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.