Home / 12,143.19-16,757.28-6,837.90

Finding the Fourth Proportional to 12,143.19, 16,757.28 and 6,837.90

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Solution

The fourth proportional to 12,143.19, 16,757.28 and 6,837.90 is: 9,436.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,143.19 : 16,757.28 = 6,837.90 : x
  2. Step 2: Convert to fraction form
    12,143.19/16,757.28 = 6,837.90/x
  3. Step 3: Cross multiply
    12,143.19x = 16,757.28 × 6,837.90
  4. Step 4: Simplify right side
    12,143.19x = 114,584,542.07
  5. Step 5: Solve for x
    x = 114,584,542.07/12,143.19
  6. Step 6: Final answer
    x = 9,436.11

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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.