Home / 13,226.11-18,251.91-7,257.72

Finding the Fourth Proportional to 13,226.11, 18,251.91 and 7,257.72

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Solution

The fourth proportional to 13,226.11, 18,251.91 and 7,257.72 is: 10,015.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,226.11 : 18,251.91 = 7,257.72 : x
  2. Step 2: Convert to fraction form
    13,226.11/18,251.91 = 7,257.72/x
  3. Step 3: Cross multiply
    13,226.11x = 18,251.91 × 7,257.72
  4. Step 4: Simplify right side
    13,226.11x = 132,467,252.25
  5. Step 5: Solve for x
    x = 132,467,252.25/13,226.11
  6. Step 6: Final answer
    x = 10,015.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.