Home / 13,722.60-18,937.52-8,414.26

Finding the Fourth Proportional to 13,722.60, 18,937.52 and 8,414.26

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Solution

The fourth proportional to 13,722.60, 18,937.52 and 8,414.26 is: 11,611.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,722.60 : 18,937.52 = 8,414.26 : x
  2. Step 2: Convert to fraction form
    13,722.60/18,937.52 = 8,414.26/x
  3. Step 3: Cross multiply
    13,722.60x = 18,937.52 × 8,414.26
  4. Step 4: Simplify right side
    13,722.60x = 159,345,217.04
  5. Step 5: Solve for x
    x = 159,345,217.04/13,722.60
  6. Step 6: Final answer
    x = 11,611.88

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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.