Home / 10,354.29-14,272.79-8,672.73

Finding the Fourth Proportional to 10,354.29, 14,272.79 and 8,672.73

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Solution

The fourth proportional to 10,354.29, 14,272.79 and 8,672.73 is: 11,954.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,354.29 : 14,272.79 = 8,672.73 : x
  2. Step 2: Convert to fraction form
    10,354.29/14,272.79 = 8,672.73/x
  3. Step 3: Cross multiply
    10,354.29x = 14,272.79 × 8,672.73
  4. Step 4: Simplify right side
    10,354.29x = 123,784,010.65
  5. Step 5: Solve for x
    x = 123,784,010.65/10,354.29
  6. Step 6: Final answer
    x = 11,954.85

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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.