Home / 12,344.20-18,518.70-5,324.20

Finding the Fourth Proportional to 12,344.20, 18,518.70 and 5,324.20

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Solution

The fourth proportional to 12,344.20, 18,518.70 and 5,324.20 is: 7,987.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,344.20 : 18,518.70 = 5,324.20 : x
  2. Step 2: Convert to fraction form
    12,344.20/18,518.70 = 5,324.20/x
  3. Step 3: Cross multiply
    12,344.20x = 18,518.70 × 5,324.20
  4. Step 4: Simplify right side
    12,344.20x = 98,597,262.54
  5. Step 5: Solve for x
    x = 98,597,262.54/12,344.20
  6. Step 6: Final answer
    x = 7,987.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.