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Finding the Fourth Proportional to 12,569.99, 18,854.39 and 4,250.34

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Solution

The fourth proportional to 12,569.99, 18,854.39 and 4,250.34 is: 6,375.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,569.99 : 18,854.39 = 4,250.34 : x
  2. Step 2: Convert to fraction form
    12,569.99/18,854.39 = 4,250.34/x
  3. Step 3: Cross multiply
    12,569.99x = 18,854.39 × 4,250.34
  4. Step 4: Simplify right side
    12,569.99x = 80,137,578.62
  5. Step 5: Solve for x
    x = 80,137,578.62/12,569.99
  6. Step 6: Final answer
    x = 6,375.31

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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.