Home / 12,545.46-18,821.04-4,225.20

Finding the Fourth Proportional to 12,545.46, 18,821.04 and 4,225.20

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Solution

The fourth proportional to 12,545.46, 18,821.04 and 4,225.20 is: 6,338.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,545.46 : 18,821.04 = 4,225.20 : x
  2. Step 2: Convert to fraction form
    12,545.46/18,821.04 = 4,225.20/x
  3. Step 3: Cross multiply
    12,545.46x = 18,821.04 × 4,225.20
  4. Step 4: Simplify right side
    12,545.46x = 79,522,658.21
  5. Step 5: Solve for x
    x = 79,522,658.21/12,545.46
  6. Step 6: Final answer
    x = 6,338.76

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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.