Home / 9,115.31-13,668.23-4,180.70

Finding the Fourth Proportional to 9,115.31, 13,668.23 and 4,180.70

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Solution

The fourth proportional to 9,115.31, 13,668.23 and 4,180.70 is: 6,268.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,115.31 : 13,668.23 = 4,180.70 : x
  2. Step 2: Convert to fraction form
    9,115.31/13,668.23 = 4,180.70/x
  3. Step 3: Cross multiply
    9,115.31x = 13,668.23 × 4,180.70
  4. Step 4: Simplify right side
    9,115.31x = 57,142,769.16
  5. Step 5: Solve for x
    x = 57,142,769.16/9,115.31
  6. Step 6: Final answer
    x = 6,268.88

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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.