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Finding the Fourth Proportional to 15,001, 20,701.38 and 8,713.78

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Solution

The fourth proportional to 15,001, 20,701.38 and 8,713.78 is: 12,025.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,001 : 20,701.38 = 8,713.78 : x
  2. Step 2: Convert to fraction form
    15,001/20,701.38 = 8,713.78/x
  3. Step 3: Cross multiply
    15,001x = 20,701.38 × 8,713.78
  4. Step 4: Simplify right side
    15,001x = 180,387,271.02
  5. Step 5: Solve for x
    x = 180,387,271.02/15,001
  6. Step 6: Final answer
    x = 12,025.02

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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.