Home / 13,195.01-18,209.32-7,226.57

Finding the Fourth Proportional to 13,195.01, 18,209.32 and 7,226.57

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Solution

The fourth proportional to 13,195.01, 18,209.32 and 7,226.57 is: 9,972.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,195.01 : 18,209.32 = 7,226.57 : x
  2. Step 2: Convert to fraction form
    13,195.01/18,209.32 = 7,226.57/x
  3. Step 3: Cross multiply
    13,195.01x = 18,209.32 × 7,226.57
  4. Step 4: Simplify right side
    13,195.01x = 131,590,953.09
  5. Step 5: Solve for x
    x = 131,590,953.09/13,195.01
  6. Step 6: Final answer
    x = 9,972.78

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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.