Home / 13,350.60-18,422.33-7,380.77

Finding the Fourth Proportional to 13,350.60, 18,422.33 and 7,380.77

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Solution

The fourth proportional to 13,350.60, 18,422.33 and 7,380.77 is: 10,184.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,350.60 : 18,422.33 = 7,380.77 : x
  2. Step 2: Convert to fraction form
    13,350.60/18,422.33 = 7,380.77/x
  3. Step 3: Cross multiply
    13,350.60x = 18,422.33 × 7,380.77
  4. Step 4: Simplify right side
    13,350.60x = 135,970,851.58
  5. Step 5: Solve for x
    x = 135,970,851.58/13,350.60
  6. Step 6: Final answer
    x = 10,184.62

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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.