Home / 10,963.28-15,129.30-6,247.64

Finding the Fourth Proportional to 10,963.28, 15,129.30 and 6,247.64

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Solution

The fourth proportional to 10,963.28, 15,129.30 and 6,247.64 is: 8,621.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,963.28 : 15,129.30 = 6,247.64 : x
  2. Step 2: Convert to fraction form
    10,963.28/15,129.30 = 6,247.64/x
  3. Step 3: Cross multiply
    10,963.28x = 15,129.30 × 6,247.64
  4. Step 4: Simplify right side
    10,963.28x = 94,522,419.85
  5. Step 5: Solve for x
    x = 94,522,419.85/10,963.28
  6. Step 6: Final answer
    x = 8,621.73

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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.