Home / 13,218.03-18,241.13-7,250.15

Finding the Fourth Proportional to 13,218.03, 18,241.13 and 7,250.15

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Solution

The fourth proportional to 13,218.03, 18,241.13 and 7,250.15 is: 10,005.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,218.03 : 18,241.13 = 7,250.15 : x
  2. Step 2: Convert to fraction form
    13,218.03/18,241.13 = 7,250.15/x
  3. Step 3: Cross multiply
    13,218.03x = 18,241.13 × 7,250.15
  4. Step 4: Simplify right side
    13,218.03x = 132,250,992.40
  5. Step 5: Solve for x
    x = 132,250,992.40/13,218.03
  6. Step 6: Final answer
    x = 10,005.35

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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.