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Finding the Fourth Proportional to 12,569.94, 18,854.88 and 3,209.96

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Solution

The fourth proportional to 12,569.94, 18,854.88 and 3,209.96 is: 4,814.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,569.94 : 18,854.88 = 3,209.96 : x
  2. Step 2: Convert to fraction form
    12,569.94/18,854.88 = 3,209.96/x
  3. Step 3: Cross multiply
    12,569.94x = 18,854.88 × 3,209.96
  4. Step 4: Simplify right side
    12,569.94x = 60,523,316.33
  5. Step 5: Solve for x
    x = 60,523,316.33/12,569.94
  6. Step 6: Final answer
    x = 4,814.92

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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.