Home / 8,315.42-11,475.28-6,192.78

Finding the Fourth Proportional to 8,315.42, 11,475.28 and 6,192.78

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Solution

The fourth proportional to 8,315.42, 11,475.28 and 6,192.78 is: 8,546.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,315.42 : 11,475.28 = 6,192.78 : x
  2. Step 2: Convert to fraction form
    8,315.42/11,475.28 = 6,192.78/x
  3. Step 3: Cross multiply
    8,315.42x = 11,475.28 × 6,192.78
  4. Step 4: Simplify right side
    8,315.42x = 71,063,884.48
  5. Step 5: Solve for x
    x = 71,063,884.48/8,315.42
  6. Step 6: Final answer
    x = 8,546.04

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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.