Home / 12,752.38-19,129.67-3,518.38

Finding the Fourth Proportional to 12,752.38, 19,129.67 and 3,518.38

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Solution

The fourth proportional to 12,752.38, 19,129.67 and 3,518.38 is: 5,277.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,752.38 : 19,129.67 = 3,518.38 : x
  2. Step 2: Convert to fraction form
    12,752.38/19,129.67 = 3,518.38/x
  3. Step 3: Cross multiply
    12,752.38x = 19,129.67 × 3,518.38
  4. Step 4: Simplify right side
    12,752.38x = 67,305,335.09
  5. Step 5: Solve for x
    x = 67,305,335.09/12,752.38
  6. Step 6: Final answer
    x = 5,277.87

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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.