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Finding the Fourth Proportional to 8,320.59, 12,483.05 and 4,160.43

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Solution

The fourth proportional to 8,320.59, 12,483.05 and 4,160.43 is: 6,241.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,320.59 : 12,483.05 = 4,160.43 : x
  2. Step 2: Convert to fraction form
    8,320.59/12,483.05 = 4,160.43/x
  3. Step 3: Cross multiply
    8,320.59x = 12,483.05 × 4,160.43
  4. Step 4: Simplify right side
    8,320.59x = 51,934,834.91
  5. Step 5: Solve for x
    x = 51,934,834.91/8,320.59
  6. Step 6: Final answer
    x = 6,241.73

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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.