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Finding the Fourth Proportional to 10,851.67, 16,275.67 and 4,279.73

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Solution

The fourth proportional to 10,851.67, 16,275.67 and 4,279.73 is: 6,418.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,851.67 : 16,275.67 = 4,279.73 : x
  2. Step 2: Convert to fraction form
    10,851.67/16,275.67 = 4,279.73/x
  3. Step 3: Cross multiply
    10,851.67x = 16,275.67 × 4,279.73
  4. Step 4: Simplify right side
    10,851.67x = 69,655,473.17
  5. Step 5: Solve for x
    x = 69,655,473.17/10,851.67
  6. Step 6: Final answer
    x = 6,418.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.