Home / 13,218.72-18,241.85-7,250.43

Finding the Fourth Proportional to 13,218.72, 18,241.85 and 7,250.43

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Solution

The fourth proportional to 13,218.72, 18,241.85 and 7,250.43 is: 10,005.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,218.72 : 18,241.85 = 7,250.43 : x
  2. Step 2: Convert to fraction form
    13,218.72/18,241.85 = 7,250.43/x
  3. Step 3: Cross multiply
    13,218.72x = 18,241.85 × 7,250.43
  4. Step 4: Simplify right side
    13,218.72x = 132,261,220.24
  5. Step 5: Solve for x
    x = 132,261,220.24/13,218.72
  6. Step 6: Final answer
    x = 10,005.60

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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.