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Finding the Fourth Proportional to 8,414.40, 12,620.58 and 3,483.47

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Solution

The fourth proportional to 8,414.40, 12,620.58 and 3,483.47 is: 5,224.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,414.40 : 12,620.58 = 3,483.47 : x
  2. Step 2: Convert to fraction form
    8,414.40/12,620.58 = 3,483.47/x
  3. Step 3: Cross multiply
    8,414.40x = 12,620.58 × 3,483.47
  4. Step 4: Simplify right side
    8,414.40x = 43,963,348.71
  5. Step 5: Solve for x
    x = 43,963,348.71/8,414.40
  6. Step 6: Final answer
    x = 5,224.78

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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.