Home / 11,427.68-17,126.10-5,179.95

Finding the Fourth Proportional to 11,427.68, 17,126.10 and 5,179.95

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Solution

The fourth proportional to 11,427.68, 17,126.10 and 5,179.95 is: 7,762.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,427.68 : 17,126.10 = 5,179.95 : x
  2. Step 2: Convert to fraction form
    11,427.68/17,126.10 = 5,179.95/x
  3. Step 3: Cross multiply
    11,427.68x = 17,126.10 × 5,179.95
  4. Step 4: Simplify right side
    11,427.68x = 88,712,341.70
  5. Step 5: Solve for x
    x = 88,712,341.70/11,427.68
  6. Step 6: Final answer
    x = 7,762.93

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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.