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Finding the Fourth Proportional to 8,579.52, 12,841.20 and 5,295.24

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Solution

The fourth proportional to 8,579.52, 12,841.20 and 5,295.24 is: 7,925.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,579.52 : 12,841.20 = 5,295.24 : x
  2. Step 2: Convert to fraction form
    8,579.52/12,841.20 = 5,295.24/x
  3. Step 3: Cross multiply
    8,579.52x = 12,841.20 × 5,295.24
  4. Step 4: Simplify right side
    8,579.52x = 67,997,235.89
  5. Step 5: Solve for x
    x = 67,997,235.89/8,579.52
  6. Step 6: Final answer
    x = 7,925.53

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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.