Home / 13,034.13-17,987.22-7,065.78

Finding the Fourth Proportional to 13,034.13, 17,987.22 and 7,065.78

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Solution

The fourth proportional to 13,034.13, 17,987.22 and 7,065.78 is: 9,750.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,034.13 : 17,987.22 = 7,065.78 : x
  2. Step 2: Convert to fraction form
    13,034.13/17,987.22 = 7,065.78/x
  3. Step 3: Cross multiply
    13,034.13x = 17,987.22 × 7,065.78
  4. Step 4: Simplify right side
    13,034.13x = 127,093,739.33
  5. Step 5: Solve for x
    x = 127,093,739.33/13,034.13
  6. Step 6: Final answer
    x = 9,750.85

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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.