Home / 8,327.76-11,490.30-5,181.72

Finding the Fourth Proportional to 8,327.76, 11,490.30 and 5,181.72

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Solution

The fourth proportional to 8,327.76, 11,490.30 and 5,181.72 is: 7,149.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,327.76 : 11,490.30 = 5,181.72 : x
  2. Step 2: Convert to fraction form
    8,327.76/11,490.30 = 5,181.72/x
  3. Step 3: Cross multiply
    8,327.76x = 11,490.30 × 5,181.72
  4. Step 4: Simplify right side
    8,327.76x = 59,539,517.32
  5. Step 5: Solve for x
    x = 59,539,517.32/8,327.76
  6. Step 6: Final answer
    x = 7,149.52

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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.