Home / 10,879.97-15,010.67-6,402.29

Finding the Fourth Proportional to 10,879.97, 15,010.67 and 6,402.29

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Solution

The fourth proportional to 10,879.97, 15,010.67 and 6,402.29 is: 8,832.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,879.97 : 15,010.67 = 6,402.29 : x
  2. Step 2: Convert to fraction form
    10,879.97/15,010.67 = 6,402.29/x
  3. Step 3: Cross multiply
    10,879.97x = 15,010.67 × 6,402.29
  4. Step 4: Simplify right side
    10,879.97x = 96,102,630.42
  5. Step 5: Solve for x
    x = 96,102,630.42/10,879.97
  6. Step 6: Final answer
    x = 8,832.99

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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.