Home / 10,344.75-15,517.15-6,856.90

Finding the Fourth Proportional to 10,344.75, 15,517.15 and 6,856.90

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Solution

The fourth proportional to 10,344.75, 15,517.15 and 6,856.90 is: 10,285.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,344.75 : 15,517.15 = 6,856.90 : x
  2. Step 2: Convert to fraction form
    10,344.75/15,517.15 = 6,856.90/x
  3. Step 3: Cross multiply
    10,344.75x = 15,517.15 × 6,856.90
  4. Step 4: Simplify right side
    10,344.75x = 106,399,615.75
  5. Step 5: Solve for x
    x = 106,399,615.75/10,344.75
  6. Step 6: Final answer
    x = 10,285.38

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1.5x scale

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.