Home / 8,077.52-11,139.58-5,241.96

Finding the Fourth Proportional to 8,077.52, 11,139.58 and 5,241.96

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Solution

The fourth proportional to 8,077.52, 11,139.58 and 5,241.96 is: 7,229.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,077.52 : 11,139.58 = 5,241.96 : x
  2. Step 2: Convert to fraction form
    8,077.52/11,139.58 = 5,241.96/x
  3. Step 3: Cross multiply
    8,077.52x = 11,139.58 × 5,241.96
  4. Step 4: Simplify right side
    8,077.52x = 58,393,232.78
  5. Step 5: Solve for x
    x = 58,393,232.78/8,077.52
  6. Step 6: Final answer
    x = 7,229.10

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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.