Home / 8,228.20-12,345.18-2,385.16

Finding the Fourth Proportional to 8,228.20, 12,345.18 and 2,385.16

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Solution

The fourth proportional to 8,228.20, 12,345.18 and 2,385.16 is: 3,578.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,228.20 : 12,345.18 = 2,385.16 : x
  2. Step 2: Convert to fraction form
    8,228.20/12,345.18 = 2,385.16/x
  3. Step 3: Cross multiply
    8,228.20x = 12,345.18 × 2,385.16
  4. Step 4: Simplify right side
    8,228.20x = 29,445,229.53
  5. Step 5: Solve for x
    x = 29,445,229.53/8,228.20
  6. Step 6: Final answer
    x = 3,578.57

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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.