Home / 12,432.57-17,148.21-8,182.27

Finding the Fourth Proportional to 12,432.57, 17,148.21 and 8,182.27

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Solution

The fourth proportional to 12,432.57, 17,148.21 and 8,182.27 is: 11,285.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,432.57 : 17,148.21 = 8,182.27 : x
  2. Step 2: Convert to fraction form
    12,432.57/17,148.21 = 8,182.27/x
  3. Step 3: Cross multiply
    12,432.57x = 17,148.21 × 8,182.27
  4. Step 4: Simplify right side
    12,432.57x = 140,311,284.24
  5. Step 5: Solve for x
    x = 140,311,284.24/12,432.57
  6. Step 6: Final answer
    x = 11,285.78

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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.