Home / 10,101.28-13,940.32-6,122.56

Finding the Fourth Proportional to 10,101.28, 13,940.32 and 6,122.56

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Solution

The fourth proportional to 10,101.28, 13,940.32 and 6,122.56 is: 8,449.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,101.28 : 13,940.32 = 6,122.56 : x
  2. Step 2: Convert to fraction form
    10,101.28/13,940.32 = 6,122.56/x
  3. Step 3: Cross multiply
    10,101.28x = 13,940.32 × 6,122.56
  4. Step 4: Simplify right side
    10,101.28x = 85,350,445.62
  5. Step 5: Solve for x
    x = 85,350,445.62/10,101.28
  6. Step 6: Final answer
    x = 8,449.47

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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.