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Finding the Fourth Proportional to 15,041.52, 20,759.47 and 8,666.89

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Solution

The fourth proportional to 15,041.52, 20,759.47 and 8,666.89 is: 11,961.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,041.52 : 20,759.47 = 8,666.89 : x
  2. Step 2: Convert to fraction form
    15,041.52/20,759.47 = 8,666.89/x
  3. Step 3: Cross multiply
    15,041.52x = 20,759.47 × 8,666.89
  4. Step 4: Simplify right side
    15,041.52x = 179,919,969.38
  5. Step 5: Solve for x
    x = 179,919,969.38/15,041.52
  6. Step 6: Final answer
    x = 11,961.56

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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.