Home / 15,744.27-21,726.24-8,669.31

Finding the Fourth Proportional to 15,744.27, 21,726.24 and 8,669.31

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Solution

The fourth proportional to 15,744.27, 21,726.24 and 8,669.31 is: 11,963.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,744.27 : 21,726.24 = 8,669.31 : x
  2. Step 2: Convert to fraction form
    15,744.27/21,726.24 = 8,669.31/x
  3. Step 3: Cross multiply
    15,744.27x = 21,726.24 × 8,669.31
  4. Step 4: Simplify right side
    15,744.27x = 188,351,509.69
  5. Step 5: Solve for x
    x = 188,351,509.69/15,744.27
  6. Step 6: Final answer
    x = 11,963.18

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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.