Home / 11,422.76-17,134.26-5,181.50

Finding the Fourth Proportional to 11,422.76, 17,134.26 and 5,181.50

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Solution

The fourth proportional to 11,422.76, 17,134.26 and 5,181.50 is: 7,772.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,422.76 : 17,134.26 = 5,181.50 : x
  2. Step 2: Convert to fraction form
    11,422.76/17,134.26 = 5,181.50/x
  3. Step 3: Cross multiply
    11,422.76x = 17,134.26 × 5,181.50
  4. Step 4: Simplify right side
    11,422.76x = 88,781,168.19
  5. Step 5: Solve for x
    x = 88,781,168.19/11,422.76
  6. Step 6: Final answer
    x = 7,772.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.