Home / 15,741.16-21,722.10-9,021.97

Finding the Fourth Proportional to 15,741.16, 21,722.10 and 9,021.97

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Solution

The fourth proportional to 15,741.16, 21,722.10 and 9,021.97 is: 12,449.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,741.16 : 21,722.10 = 9,021.97 : x
  2. Step 2: Convert to fraction form
    15,741.16/21,722.10 = 9,021.97/x
  3. Step 3: Cross multiply
    15,741.16x = 21,722.10 × 9,021.97
  4. Step 4: Simplify right side
    15,741.16x = 195,976,134.54
  5. Step 5: Solve for x
    x = 195,976,134.54/15,741.16
  6. Step 6: Final answer
    x = 12,449.92

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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.