Home / 15,918.75-23,878.09-4,231.97

Finding the Fourth Proportional to 15,918.75, 23,878.09 and 4,231.97

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Solution

The fourth proportional to 15,918.75, 23,878.09 and 4,231.97 is: 6,347.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,918.75 : 23,878.09 = 4,231.97 : x
  2. Step 2: Convert to fraction form
    15,918.75/23,878.09 = 4,231.97/x
  3. Step 3: Cross multiply
    15,918.75x = 23,878.09 × 4,231.97
  4. Step 4: Simplify right side
    15,918.75x = 101,051,360.54
  5. Step 5: Solve for x
    x = 101,051,360.54/15,918.75
  6. Step 6: Final answer
    x = 6,347.95

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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.