Home / 13,679.57-20,519.55-9,029.36

Finding the Fourth Proportional to 13,679.57, 20,519.55 and 9,029.36

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Solution

The fourth proportional to 13,679.57, 20,519.55 and 9,029.36 is: 13,544.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,679.57 : 20,519.55 = 9,029.36 : x
  2. Step 2: Convert to fraction form
    13,679.57/20,519.55 = 9,029.36/x
  3. Step 3: Cross multiply
    13,679.57x = 20,519.55 × 9,029.36
  4. Step 4: Simplify right side
    13,679.57x = 185,278,301.39
  5. Step 5: Solve for x
    x = 185,278,301.39/13,679.57
  6. Step 6: Final answer
    x = 13,544.17

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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.