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Finding the Fourth Proportional to 8,363.49, 12,545.90 and 2,816.79

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Solution

The fourth proportional to 8,363.49, 12,545.90 and 2,816.79 is: 4,225.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,363.49 : 12,545.90 = 2,816.79 : x
  2. Step 2: Convert to fraction form
    8,363.49/12,545.90 = 2,816.79/x
  3. Step 3: Cross multiply
    8,363.49x = 12,545.90 × 2,816.79
  4. Step 4: Simplify right side
    8,363.49x = 35,339,151.58
  5. Step 5: Solve for x
    x = 35,339,151.58/8,363.49
  6. Step 6: Final answer
    x = 4,225.41

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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.