Home / 10,427.38-15,642.68-3,503.50

Finding the Fourth Proportional to 10,427.38, 15,642.68 and 3,503.50

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Solution

The fourth proportional to 10,427.38, 15,642.68 and 3,503.50 is: 5,255.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,427.38 : 15,642.68 = 3,503.50 : x
  2. Step 2: Convert to fraction form
    10,427.38/15,642.68 = 3,503.50/x
  3. Step 3: Cross multiply
    10,427.38x = 15,642.68 × 3,503.50
  4. Step 4: Simplify right side
    10,427.38x = 54,804,129.38
  5. Step 5: Solve for x
    x = 54,804,129.38/10,427.38
  6. Step 6: Final answer
    x = 5,255.79

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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.