Home / 10,121.80-15,184.29-2,726.55

Finding the Fourth Proportional to 10,121.80, 15,184.29 and 2,726.55

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Solution

The fourth proportional to 10,121.80, 15,184.29 and 2,726.55 is: 4,090.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,121.80 : 15,184.29 = 2,726.55 : x
  2. Step 2: Convert to fraction form
    10,121.80/15,184.29 = 2,726.55/x
  3. Step 3: Cross multiply
    10,121.80x = 15,184.29 × 2,726.55
  4. Step 4: Simplify right side
    10,121.80x = 41,400,725.90
  5. Step 5: Solve for x
    x = 41,400,725.90/10,121.80
  6. Step 6: Final answer
    x = 4,090.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.