Home / 13,344.12-18,415.68-7,375.66

Finding the Fourth Proportional to 13,344.12, 18,415.68 and 7,375.66

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Solution

The fourth proportional to 13,344.12, 18,415.68 and 7,375.66 is: 10,178.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,344.12 : 18,415.68 = 7,375.66 : x
  2. Step 2: Convert to fraction form
    13,344.12/18,415.68 = 7,375.66/x
  3. Step 3: Cross multiply
    13,344.12x = 18,415.68 × 7,375.66
  4. Step 4: Simplify right side
    13,344.12x = 135,827,741.39
  5. Step 5: Solve for x
    x = 135,827,741.39/13,344.12
  6. Step 6: Final answer
    x = 10,178.85

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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.