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Finding the Fourth Proportional to 15,001.77, 20,701.82 and 8,627.88

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Solution

The fourth proportional to 15,001.77, 20,701.82 and 8,627.88 is: 11,906.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,001.77 : 20,701.82 = 8,627.88 : x
  2. Step 2: Convert to fraction form
    15,001.77/20,701.82 = 8,627.88/x
  3. Step 3: Cross multiply
    15,001.77x = 20,701.82 × 8,627.88
  4. Step 4: Simplify right side
    15,001.77x = 178,612,917.94
  5. Step 5: Solve for x
    x = 178,612,917.94/15,001.77
  6. Step 6: Final answer
    x = 11,906.12

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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.