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Finding the Fourth Proportional to 15,251.01, 21,046.30 and 8,536.92

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Solution

The fourth proportional to 15,251.01, 21,046.30 and 8,536.92 is: 11,780.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,251.01 : 21,046.30 = 8,536.92 : x
  2. Step 2: Convert to fraction form
    15,251.01/21,046.30 = 8,536.92/x
  3. Step 3: Cross multiply
    15,251.01x = 21,046.30 × 8,536.92
  4. Step 4: Simplify right side
    15,251.01x = 179,670,579.40
  5. Step 5: Solve for x
    x = 179,670,579.40/15,251.01
  6. Step 6: Final answer
    x = 11,780.90

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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.