Home / 10,486.42-15,735.10-4,251.04

Finding the Fourth Proportional to 10,486.42, 15,735.10 and 4,251.04

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Solution

The fourth proportional to 10,486.42, 15,735.10 and 4,251.04 is: 6,378.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,486.42 : 15,735.10 = 4,251.04 : x
  2. Step 2: Convert to fraction form
    10,486.42/15,735.10 = 4,251.04/x
  3. Step 3: Cross multiply
    10,486.42x = 15,735.10 × 4,251.04
  4. Step 4: Simplify right side
    10,486.42x = 66,890,518.25
  5. Step 5: Solve for x
    x = 66,890,518.25/10,486.42
  6. Step 6: Final answer
    x = 6,378.78

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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.