Home / 18,364.04-25,306.84-12,385.33

Finding the Fourth Proportional to 18,364.04, 25,306.84 and 12,385.33

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Solution

The fourth proportional to 18,364.04, 25,306.84 and 12,385.33 is: 17,067.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,364.04 : 25,306.84 = 12,385.33 : x
  2. Step 2: Convert to fraction form
    18,364.04/25,306.84 = 12,385.33/x
  3. Step 3: Cross multiply
    18,364.04x = 25,306.84 × 12,385.33
  4. Step 4: Simplify right side
    18,364.04x = 313,433,516.87
  5. Step 5: Solve for x
    x = 313,433,516.87/18,364.04
  6. Step 6: Final answer
    x = 17,067.79

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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.