Home / 13,344.24-18,415.20-7,375.80

Finding the Fourth Proportional to 13,344.24, 18,415.20 and 7,375.80

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Solution

The fourth proportional to 13,344.24, 18,415.20 and 7,375.80 is: 10,178.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,344.24 : 18,415.20 = 7,375.80 : x
  2. Step 2: Convert to fraction form
    13,344.24/18,415.20 = 7,375.80/x
  3. Step 3: Cross multiply
    13,344.24x = 18,415.20 × 7,375.80
  4. Step 4: Simplify right side
    13,344.24x = 135,826,832.16
  5. Step 5: Solve for x
    x = 135,826,832.16/13,344.24
  6. Step 6: Final answer
    x = 10,178.69

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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.