Home / 13,218.48-18,241.94-7,250.64

Finding the Fourth Proportional to 13,218.48, 18,241.94 and 7,250.64

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Solution

The fourth proportional to 13,218.48, 18,241.94 and 7,250.64 is: 10,006.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,218.48 : 18,241.94 = 7,250.64 : x
  2. Step 2: Convert to fraction form
    13,218.48/18,241.94 = 7,250.64/x
  3. Step 3: Cross multiply
    13,218.48x = 18,241.94 × 7,250.64
  4. Step 4: Simplify right side
    13,218.48x = 132,265,739.84
  5. Step 5: Solve for x
    x = 132,265,739.84/13,218.48
  6. Step 6: Final answer
    x = 10,006.12

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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.