Home / 11,938.70-17,909.88-3,617.66

Finding the Fourth Proportional to 11,938.70, 17,909.88 and 3,617.66

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Solution

The fourth proportional to 11,938.70, 17,909.88 and 3,617.66 is: 5,427.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,938.70 : 17,909.88 = 3,617.66 : x
  2. Step 2: Convert to fraction form
    11,938.70/17,909.88 = 3,617.66/x
  3. Step 3: Cross multiply
    11,938.70x = 17,909.88 × 3,617.66
  4. Step 4: Simplify right side
    11,938.70x = 64,791,856.48
  5. Step 5: Solve for x
    x = 64,791,856.48/11,938.70
  6. Step 6: Final answer
    x = 5,427.04

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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.