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Finding the Fourth Proportional to 15,023.52, 20,732.28 and 8,308.62

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Solution

The fourth proportional to 15,023.52, 20,732.28 and 8,308.62 is: 11,465.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,023.52 : 20,732.28 = 8,308.62 : x
  2. Step 2: Convert to fraction form
    15,023.52/20,732.28 = 8,308.62/x
  3. Step 3: Cross multiply
    15,023.52x = 20,732.28 × 8,308.62
  4. Step 4: Simplify right side
    15,023.52x = 172,256,636.25
  5. Step 5: Solve for x
    x = 172,256,636.25/15,023.52
  6. Step 6: Final answer
    x = 11,465.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.