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Finding the Fourth Proportional to 8,435.04, 12,648.18 and 3,505.68

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Solution

The fourth proportional to 8,435.04, 12,648.18 and 3,505.68 is: 5,256.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,435.04 : 12,648.18 = 3,505.68 : x
  2. Step 2: Convert to fraction form
    8,435.04/12,648.18 = 3,505.68/x
  3. Step 3: Cross multiply
    8,435.04x = 12,648.18 × 3,505.68
  4. Step 4: Simplify right side
    8,435.04x = 44,340,471.66
  5. Step 5: Solve for x
    x = 44,340,471.66/8,435.04
  6. Step 6: Final answer
    x = 5,256.70

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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.