Home / 10,217.28-14,108.82-6,447.16

Finding the Fourth Proportional to 10,217.28, 14,108.82 and 6,447.16

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Solution

The fourth proportional to 10,217.28, 14,108.82 and 6,447.16 is: 8,902.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,217.28 : 14,108.82 = 6,447.16 : x
  2. Step 2: Convert to fraction form
    10,217.28/14,108.82 = 6,447.16/x
  3. Step 3: Cross multiply
    10,217.28x = 14,108.82 × 6,447.16
  4. Step 4: Simplify right side
    10,217.28x = 90,961,819.95
  5. Step 5: Solve for x
    x = 90,961,819.95/10,217.28
  6. Step 6: Final answer
    x = 8,902.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.