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Finding the Fourth Proportional to 8,435.58, 12,657.94 and 3,508.62

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Solution

The fourth proportional to 8,435.58, 12,657.94 and 3,508.62 is: 5,264.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,435.58 : 12,657.94 = 3,508.62 : x
  2. Step 2: Convert to fraction form
    8,435.58/12,657.94 = 3,508.62/x
  3. Step 3: Cross multiply
    8,435.58x = 12,657.94 × 3,508.62
  4. Step 4: Simplify right side
    8,435.58x = 44,411,901.44
  5. Step 5: Solve for x
    x = 44,411,901.44/8,435.58
  6. Step 6: Final answer
    x = 5,264.83

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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.