Home / 13,112.32-19,668.12-3,251.38

Finding the Fourth Proportional to 13,112.32, 19,668.12 and 3,251.38

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Solution

The fourth proportional to 13,112.32, 19,668.12 and 3,251.38 is: 4,876.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,112.32 : 19,668.12 = 3,251.38 : x
  2. Step 2: Convert to fraction form
    13,112.32/19,668.12 = 3,251.38/x
  3. Step 3: Cross multiply
    13,112.32x = 19,668.12 × 3,251.38
  4. Step 4: Simplify right side
    13,112.32x = 63,948,532.01
  5. Step 5: Solve for x
    x = 63,948,532.01/13,112.32
  6. Step 6: Final answer
    x = 4,876.98

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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.