Home / 12,452.56-17,181.12-8,671.52

Finding the Fourth Proportional to 12,452.56, 17,181.12 and 8,671.52

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Solution

The fourth proportional to 12,452.56, 17,181.12 and 8,671.52 is: 11,964.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,452.56 : 17,181.12 = 8,671.52 : x
  2. Step 2: Convert to fraction form
    12,452.56/17,181.12 = 8,671.52/x
  3. Step 3: Cross multiply
    12,452.56x = 17,181.12 × 8,671.52
  4. Step 4: Simplify right side
    12,452.56x = 148,986,425.70
  5. Step 5: Solve for x
    x = 148,986,425.70/12,452.56
  6. Step 6: Final answer
    x = 11,964.32

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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.