Home / 8,231.40-11,359.72-4,876.12

Finding the Fourth Proportional to 8,231.40, 11,359.72 and 4,876.12

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Solution

The fourth proportional to 8,231.40, 11,359.72 and 4,876.12 is: 6,729.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,231.40 : 11,359.72 = 4,876.12 : x
  2. Step 2: Convert to fraction form
    8,231.40/11,359.72 = 4,876.12/x
  3. Step 3: Cross multiply
    8,231.40x = 11,359.72 × 4,876.12
  4. Step 4: Simplify right side
    8,231.40x = 55,391,357.89
  5. Step 5: Solve for x
    x = 55,391,357.89/8,231.40
  6. Step 6: Final answer
    x = 6,729.28

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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.