Home / 12,569.78-18,854.73-4,249.85

Finding the Fourth Proportional to 12,569.78, 18,854.73 and 4,249.85

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Solution

The fourth proportional to 12,569.78, 18,854.73 and 4,249.85 is: 6,374.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,569.78 : 18,854.73 = 4,249.85 : x
  2. Step 2: Convert to fraction form
    12,569.78/18,854.73 = 4,249.85/x
  3. Step 3: Cross multiply
    12,569.78x = 18,854.73 × 4,249.85
  4. Step 4: Simplify right side
    12,569.78x = 80,129,680.02
  5. Step 5: Solve for x
    x = 80,129,680.02/12,569.78
  6. Step 6: Final answer
    x = 6,374.79

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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.