Home / 13,218.58-18,241.52-7,250.14

Finding the Fourth Proportional to 13,218.58, 18,241.52 and 7,250.14

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Solution

The fourth proportional to 13,218.58, 18,241.52 and 7,250.14 is: 10,005.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,218.58 : 18,241.52 = 7,250.14 : x
  2. Step 2: Convert to fraction form
    13,218.58/18,241.52 = 7,250.14/x
  3. Step 3: Cross multiply
    13,218.58x = 18,241.52 × 7,250.14
  4. Step 4: Simplify right side
    13,218.58x = 132,253,446.35
  5. Step 5: Solve for x
    x = 132,253,446.35/13,218.58
  6. Step 6: Final answer
    x = 10,005.12

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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.