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Finding the Fourth Proportional to 15,001.59, 20,701.58 and 8,627.70

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Solution

The fourth proportional to 15,001.59, 20,701.58 and 8,627.70 is: 11,905.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,001.59 : 20,701.58 = 8,627.70 : x
  2. Step 2: Convert to fraction form
    15,001.59/20,701.58 = 8,627.70/x
  3. Step 3: Cross multiply
    15,001.59x = 20,701.58 × 8,627.70
  4. Step 4: Simplify right side
    15,001.59x = 178,606,978.63
  5. Step 5: Solve for x
    x = 178,606,978.63/15,001.59
  6. Step 6: Final answer
    x = 11,905.87

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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.