Home / 13,195.08-18,209.21-7,226.77

Finding the Fourth Proportional to 13,195.08, 18,209.21 and 7,226.77

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Solution

The fourth proportional to 13,195.08, 18,209.21 and 7,226.77 is: 9,972.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,195.08 : 18,209.21 = 7,226.77 : x
  2. Step 2: Convert to fraction form
    13,195.08/18,209.21 = 7,226.77/x
  3. Step 3: Cross multiply
    13,195.08x = 18,209.21 × 7,226.77
  4. Step 4: Simplify right side
    13,195.08x = 131,593,758.65
  5. Step 5: Solve for x
    x = 131,593,758.65/13,195.08
  6. Step 6: Final answer
    x = 9,972.94

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Half scale
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Double scale
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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.