Home / 8,821.20-13,227.65-5,124.47

Finding the Fourth Proportional to 8,821.20, 13,227.65 and 5,124.47

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Solution

The fourth proportional to 8,821.20, 13,227.65 and 5,124.47 is: 7,684.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,821.20 : 13,227.65 = 5,124.47 : x
  2. Step 2: Convert to fraction form
    8,821.20/13,227.65 = 5,124.47/x
  3. Step 3: Cross multiply
    8,821.20x = 13,227.65 × 5,124.47
  4. Step 4: Simplify right side
    8,821.20x = 67,784,651.88
  5. Step 5: Solve for x
    x = 67,784,651.88/8,821.20
  6. Step 6: Final answer
    x = 7,684.29

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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.