Home / 13,414.60-18,512.35-7,446.65

Finding the Fourth Proportional to 13,414.60, 18,512.35 and 7,446.65

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Solution

The fourth proportional to 13,414.60, 18,512.35 and 7,446.65 is: 10,276.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,414.60 : 18,512.35 = 7,446.65 : x
  2. Step 2: Convert to fraction form
    13,414.60/18,512.35 = 7,446.65/x
  3. Step 3: Cross multiply
    13,414.60x = 18,512.35 × 7,446.65
  4. Step 4: Simplify right side
    13,414.60x = 137,854,991.13
  5. Step 5: Solve for x
    x = 137,854,991.13/13,414.60
  6. Step 6: Final answer
    x = 10,276.49

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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.