Home / 10,432.14-15,640.35-3,407.95

Finding the Fourth Proportional to 10,432.14, 15,640.35 and 3,407.95

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Solution

The fourth proportional to 10,432.14, 15,640.35 and 3,407.95 is: 5,109.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,432.14 : 15,640.35 = 3,407.95 : x
  2. Step 2: Convert to fraction form
    10,432.14/15,640.35 = 3,407.95/x
  3. Step 3: Cross multiply
    10,432.14x = 15,640.35 × 3,407.95
  4. Step 4: Simplify right side
    10,432.14x = 53,301,530.78
  5. Step 5: Solve for x
    x = 53,301,530.78/10,432.14
  6. Step 6: Final answer
    x = 5,109.36

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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.