Home / 9,138.11-13,708.20-4,984.19

Finding the Fourth Proportional to 9,138.11, 13,708.20 and 4,984.19

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Solution

The fourth proportional to 9,138.11, 13,708.20 and 4,984.19 is: 7,476.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,138.11 : 13,708.20 = 4,984.19 : x
  2. Step 2: Convert to fraction form
    9,138.11/13,708.20 = 4,984.19/x
  3. Step 3: Cross multiply
    9,138.11x = 13,708.20 × 4,984.19
  4. Step 4: Simplify right side
    9,138.11x = 68,324,204.82
  5. Step 5: Solve for x
    x = 68,324,204.82/9,138.11
  6. Step 6: Final answer
    x = 7,476.85

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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.