Home / 12,545.16-18,820.62-4,224.96

Finding the Fourth Proportional to 12,545.16, 18,820.62 and 4,224.96

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Solution

The fourth proportional to 12,545.16, 18,820.62 and 4,224.96 is: 6,338.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,545.16 : 18,820.62 = 4,224.96 : x
  2. Step 2: Convert to fraction form
    12,545.16/18,820.62 = 4,224.96/x
  3. Step 3: Cross multiply
    12,545.16x = 18,820.62 × 4,224.96
  4. Step 4: Simplify right side
    12,545.16x = 79,516,366.68
  5. Step 5: Solve for x
    x = 79,516,366.68/12,545.16
  6. Step 6: Final answer
    x = 6,338.41

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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.