Home / 9,918.82-13,687.41-5,939.02

Finding the Fourth Proportional to 9,918.82, 13,687.41 and 5,939.02

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Solution

The fourth proportional to 9,918.82, 13,687.41 and 5,939.02 is: 8,195.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,918.82 : 13,687.41 = 5,939.02 : x
  2. Step 2: Convert to fraction form
    9,918.82/13,687.41 = 5,939.02/x
  3. Step 3: Cross multiply
    9,918.82x = 13,687.41 × 5,939.02
  4. Step 4: Simplify right side
    9,918.82x = 81,289,801.74
  5. Step 5: Solve for x
    x = 81,289,801.74/9,918.82
  6. Step 6: Final answer
    x = 8,195.51

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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.