Home / 15,743.55-21,726.06-8,669.93

Finding the Fourth Proportional to 15,743.55, 21,726.06 and 8,669.93

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Solution

The fourth proportional to 15,743.55, 21,726.06 and 8,669.93 is: 11,964.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,743.55 : 21,726.06 = 8,669.93 : x
  2. Step 2: Convert to fraction form
    15,743.55/21,726.06 = 8,669.93/x
  3. Step 3: Cross multiply
    15,743.55x = 21,726.06 × 8,669.93
  4. Step 4: Simplify right side
    15,743.55x = 188,363,310.75
  5. Step 5: Solve for x
    x = 188,363,310.75/15,743.55
  6. Step 6: Final answer
    x = 11,964.48

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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.