Home / 13,219.23-18,241.83-7,251.15

Finding the Fourth Proportional to 13,219.23, 18,241.83 and 7,251.15

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Solution

The fourth proportional to 13,219.23, 18,241.83 and 7,251.15 is: 10,006.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,219.23 : 18,241.83 = 7,251.15 : x
  2. Step 2: Convert to fraction form
    13,219.23/18,241.83 = 7,251.15/x
  3. Step 3: Cross multiply
    13,219.23x = 18,241.83 × 7,251.15
  4. Step 4: Simplify right side
    13,219.23x = 132,274,245.60
  5. Step 5: Solve for x
    x = 132,274,245.60/13,219.23
  6. Step 6: Final answer
    x = 10,006.20

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Double scale
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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.