Home / 13,206.80-19,805.61-5,306.97

Finding the Fourth Proportional to 13,206.80, 19,805.61 and 5,306.97

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Solution

The fourth proportional to 13,206.80, 19,805.61 and 5,306.97 is: 7,958.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,206.80 : 19,805.61 = 5,306.97 : x
  2. Step 2: Convert to fraction form
    13,206.80/19,805.61 = 5,306.97/x
  3. Step 3: Cross multiply
    13,206.80x = 19,805.61 × 5,306.97
  4. Step 4: Simplify right side
    13,206.80x = 105,107,760.87
  5. Step 5: Solve for x
    x = 105,107,760.87/13,206.80
  6. Step 6: Final answer
    x = 7,958.61

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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.