Home / 13,249.20-19,879.24-7,007.55

Finding the Fourth Proportional to 13,249.20, 19,879.24 and 7,007.55

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Solution

The fourth proportional to 13,249.20, 19,879.24 and 7,007.55 is: 10,514.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,249.20 : 19,879.24 = 7,007.55 : x
  2. Step 2: Convert to fraction form
    13,249.20/19,879.24 = 7,007.55/x
  3. Step 3: Cross multiply
    13,249.20x = 19,879.24 × 7,007.55
  4. Step 4: Simplify right side
    13,249.20x = 139,304,768.26
  5. Step 5: Solve for x
    x = 139,304,768.26/13,249.20
  6. Step 6: Final answer
    x = 10,514.20

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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.