Home / 13,218.54-18,241.43-7,250.19

Finding the Fourth Proportional to 13,218.54, 18,241.43 and 7,250.19

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Solution

The fourth proportional to 13,218.54, 18,241.43 and 7,250.19 is: 10,005.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,218.54 : 18,241.43 = 7,250.19 : x
  2. Step 2: Convert to fraction form
    13,218.54/18,241.43 = 7,250.19/x
  3. Step 3: Cross multiply
    13,218.54x = 18,241.43 × 7,250.19
  4. Step 4: Simplify right side
    13,218.54x = 132,253,797.12
  5. Step 5: Solve for x
    x = 132,253,797.12/13,218.54
  6. Step 6: Final answer
    x = 10,005.17

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Half scale
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Double scale
Find fourth proportional to 13,219.54, 18,242.80 and 7,251.19
Similar ratio
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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.