Home / 9,134.20-13,701.30-5,447.80

Finding the Fourth Proportional to 9,134.20, 13,701.30 and 5,447.80

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Solution

The fourth proportional to 9,134.20, 13,701.30 and 5,447.80 is: 8,171.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,134.20 : 13,701.30 = 5,447.80 : x
  2. Step 2: Convert to fraction form
    9,134.20/13,701.30 = 5,447.80/x
  3. Step 3: Cross multiply
    9,134.20x = 13,701.30 × 5,447.80
  4. Step 4: Simplify right side
    9,134.20x = 74,641,942.14
  5. Step 5: Solve for x
    x = 74,641,942.14/9,134.20
  6. Step 6: Final answer
    x = 8,171.70

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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.