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Finding the Fourth Proportional to 15,079.56, 20,761.26 and 12,950.88

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Solution

The fourth proportional to 15,079.56, 20,761.26 and 12,950.88 is: 17,830.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,079.56 : 20,761.26 = 12,950.88 : x
  2. Step 2: Convert to fraction form
    15,079.56/20,761.26 = 12,950.88/x
  3. Step 3: Cross multiply
    15,079.56x = 20,761.26 × 12,950.88
  4. Step 4: Simplify right side
    15,079.56x = 268,876,586.91
  5. Step 5: Solve for x
    x = 268,876,586.91/15,079.56
  6. Step 6: Final answer
    x = 17,830.53

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.