Home / 10,211.38-15,307.49-3,975.39

Finding the Fourth Proportional to 10,211.38, 15,307.49 and 3,975.39

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Solution

The fourth proportional to 10,211.38, 15,307.49 and 3,975.39 is: 5,959.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,211.38 : 15,307.49 = 3,975.39 : x
  2. Step 2: Convert to fraction form
    10,211.38/15,307.49 = 3,975.39/x
  3. Step 3: Cross multiply
    10,211.38x = 15,307.49 × 3,975.39
  4. Step 4: Simplify right side
    10,211.38x = 60,853,252.61
  5. Step 5: Solve for x
    x = 60,853,252.61/10,211.38
  6. Step 6: Final answer
    x = 5,959.36

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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.