Home / 12,340.16-18,512.96-3,575.44

Finding the Fourth Proportional to 12,340.16, 18,512.96 and 3,575.44

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Solution

The fourth proportional to 12,340.16, 18,512.96 and 3,575.44 is: 5,363.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,340.16 : 18,512.96 = 3,575.44 : x
  2. Step 2: Convert to fraction form
    12,340.16/18,512.96 = 3,575.44/x
  3. Step 3: Cross multiply
    12,340.16x = 18,512.96 × 3,575.44
  4. Step 4: Simplify right side
    12,340.16x = 66,191,977.70
  5. Step 5: Solve for x
    x = 66,191,977.70/12,340.16
  6. Step 6: Final answer
    x = 5,363.95

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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.