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Finding the Fourth Proportional to 15,677.76, 23,520.72 and 5,819.88

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Solution

The fourth proportional to 15,677.76, 23,520.72 and 5,819.88 is: 8,731.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,677.76 : 23,520.72 = 5,819.88 : x
  2. Step 2: Convert to fraction form
    15,677.76/23,520.72 = 5,819.88/x
  3. Step 3: Cross multiply
    15,677.76x = 23,520.72 × 5,819.88
  4. Step 4: Simplify right side
    15,677.76x = 136,887,767.91
  5. Step 5: Solve for x
    x = 136,887,767.91/15,677.76
  6. Step 6: Final answer
    x = 8,731.33

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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.