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Finding the Fourth Proportional to 12,400.68, 18,587.58 and 4,609.32

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Solution

The fourth proportional to 12,400.68, 18,587.58 and 4,609.32 is: 6,908.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,400.68 : 18,587.58 = 4,609.32 : x
  2. Step 2: Convert to fraction form
    12,400.68/18,587.58 = 4,609.32/x
  3. Step 3: Cross multiply
    12,400.68x = 18,587.58 × 4,609.32
  4. Step 4: Simplify right side
    12,400.68x = 85,676,104.25
  5. Step 5: Solve for x
    x = 85,676,104.25/12,400.68
  6. Step 6: Final answer
    x = 6,908.98

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.