Home / 8,812.13-12,160.44-5,229.21

Finding the Fourth Proportional to 8,812.13, 12,160.44 and 5,229.21

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Solution

The fourth proportional to 8,812.13, 12,160.44 and 5,229.21 is: 7,216.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,812.13 : 12,160.44 = 5,229.21 : x
  2. Step 2: Convert to fraction form
    8,812.13/12,160.44 = 5,229.21/x
  3. Step 3: Cross multiply
    8,812.13x = 12,160.44 × 5,229.21
  4. Step 4: Simplify right side
    8,812.13x = 63,589,540.05
  5. Step 5: Solve for x
    x = 63,589,540.05/8,812.13
  6. Step 6: Final answer
    x = 7,216.14

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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.