Home / 10,999.97-15,179.54-6,521.07

Finding the Fourth Proportional to 10,999.97, 15,179.54 and 6,521.07

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Solution

The fourth proportional to 10,999.97, 15,179.54 and 6,521.07 is: 8,998.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,999.97 : 15,179.54 = 6,521.07 : x
  2. Step 2: Convert to fraction form
    10,999.97/15,179.54 = 6,521.07/x
  3. Step 3: Cross multiply
    10,999.97x = 15,179.54 × 6,521.07
  4. Step 4: Simplify right side
    10,999.97x = 98,986,810.30
  5. Step 5: Solve for x
    x = 98,986,810.30/10,999.97
  6. Step 6: Final answer
    x = 8,998.83

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Similar ratio
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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.