Home / 8,348.28-11,519.82-4,990.42

Finding the Fourth Proportional to 8,348.28, 11,519.82 and 4,990.42

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Solution

The fourth proportional to 8,348.28, 11,519.82 and 4,990.42 is: 6,886.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,348.28 : 11,519.82 = 4,990.42 : x
  2. Step 2: Convert to fraction form
    8,348.28/11,519.82 = 4,990.42/x
  3. Step 3: Cross multiply
    8,348.28x = 11,519.82 × 4,990.42
  4. Step 4: Simplify right side
    8,348.28x = 57,488,740.12
  5. Step 5: Solve for x
    x = 57,488,740.12/8,348.28
  6. Step 6: Final answer
    x = 6,886.30

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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.