Home / 12,879.52-19,319.38-4,559.57

Finding the Fourth Proportional to 12,879.52, 19,319.38 and 4,559.57

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Solution

The fourth proportional to 12,879.52, 19,319.38 and 4,559.57 is: 6,839.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,879.52 : 19,319.38 = 4,559.57 : x
  2. Step 2: Convert to fraction form
    12,879.52/19,319.38 = 4,559.57/x
  3. Step 3: Cross multiply
    12,879.52x = 19,319.38 × 4,559.57
  4. Step 4: Simplify right side
    12,879.52x = 88,088,029.92
  5. Step 5: Solve for x
    x = 88,088,029.92/12,879.52
  6. Step 6: Final answer
    x = 6,839.39

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Similar ratio
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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.