Home / 8,171.22-12,254.55-2,905.56

Finding the Fourth Proportional to 8,171.22, 12,254.55 and 2,905.56

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Solution

The fourth proportional to 8,171.22, 12,254.55 and 2,905.56 is: 4,357.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,171.22 : 12,254.55 = 2,905.56 : x
  2. Step 2: Convert to fraction form
    8,171.22/12,254.55 = 2,905.56/x
  3. Step 3: Cross multiply
    8,171.22x = 12,254.55 × 2,905.56
  4. Step 4: Simplify right side
    8,171.22x = 35,606,330.30
  5. Step 5: Solve for x
    x = 35,606,330.30/8,171.22
  6. Step 6: Final answer
    x = 4,357.53

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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.