Home / 12,073.12-18,121.96-8,325.15

Finding the Fourth Proportional to 12,073.12, 18,121.96 and 8,325.15

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Solution

The fourth proportional to 12,073.12, 18,121.96 and 8,325.15 is: 12,496.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,073.12 : 18,121.96 = 8,325.15 : x
  2. Step 2: Convert to fraction form
    12,073.12/18,121.96 = 8,325.15/x
  3. Step 3: Cross multiply
    12,073.12x = 18,121.96 × 8,325.15
  4. Step 4: Simplify right side
    12,073.12x = 150,867,977.74
  5. Step 5: Solve for x
    x = 150,867,977.74/12,073.12
  6. Step 6: Final answer
    x = 12,496.19

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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.