Home / 8,162.29-12,243.22-2,318.90

Finding the Fourth Proportional to 8,162.29, 12,243.22 and 2,318.90

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Solution

The fourth proportional to 8,162.29, 12,243.22 and 2,318.90 is: 3,478.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,162.29 : 12,243.22 = 2,318.90 : x
  2. Step 2: Convert to fraction form
    8,162.29/12,243.22 = 2,318.90/x
  3. Step 3: Cross multiply
    8,162.29x = 12,243.22 × 2,318.90
  4. Step 4: Simplify right side
    8,162.29x = 28,390,802.86
  5. Step 5: Solve for x
    x = 28,390,802.86/8,162.29
  6. Step 6: Final answer
    x = 3,478.29

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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.