Home / 9,318.26-13,972.97-3,390.95

Finding the Fourth Proportional to 9,318.26, 13,972.97 and 3,390.95

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Solution

The fourth proportional to 9,318.26, 13,972.97 and 3,390.95 is: 5,084.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,318.26 : 13,972.97 = 3,390.95 : x
  2. Step 2: Convert to fraction form
    9,318.26/13,972.97 = 3,390.95/x
  3. Step 3: Cross multiply
    9,318.26x = 13,972.97 × 3,390.95
  4. Step 4: Simplify right side
    9,318.26x = 47,381,555.80
  5. Step 5: Solve for x
    x = 47,381,555.80/9,318.26
  6. Step 6: Final answer
    x = 5,084.81

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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.