Home / 15,207.06-20,995.61-13,610.94

Finding the Fourth Proportional to 15,207.06, 20,995.61 and 13,610.94

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Solution

The fourth proportional to 15,207.06, 20,995.61 and 13,610.94 is: 18,791.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,207.06 : 20,995.61 = 13,610.94 : x
  2. Step 2: Convert to fraction form
    15,207.06/20,995.61 = 13,610.94/x
  3. Step 3: Cross multiply
    15,207.06x = 20,995.61 × 13,610.94
  4. Step 4: Simplify right side
    15,207.06x = 285,769,987.97
  5. Step 5: Solve for x
    x = 285,769,987.97/15,207.06
  6. Step 6: Final answer
    x = 18,791.93

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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.