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Finding the Fourth Proportional to 8,398.50, 12,596.88 and 2,158.32

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Solution

The fourth proportional to 8,398.50, 12,596.88 and 2,158.32 is: 3,237.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,398.50 : 12,596.88 = 2,158.32 : x
  2. Step 2: Convert to fraction form
    8,398.50/12,596.88 = 2,158.32/x
  3. Step 3: Cross multiply
    8,398.50x = 12,596.88 × 2,158.32
  4. Step 4: Simplify right side
    8,398.50x = 27,188,098.04
  5. Step 5: Solve for x
    x = 27,188,098.04/8,398.50
  6. Step 6: Final answer
    x = 3,237.26

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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.