Home / 18,896.20-26,087.55-12,531.44

Finding the Fourth Proportional to 18,896.20, 26,087.55 and 12,531.44

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Solution

The fourth proportional to 18,896.20, 26,087.55 and 12,531.44 is: 17,300.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,896.20 : 26,087.55 = 12,531.44 : x
  2. Step 2: Convert to fraction form
    18,896.20/26,087.55 = 12,531.44/x
  3. Step 3: Cross multiply
    18,896.20x = 26,087.55 × 12,531.44
  4. Step 4: Simplify right side
    18,896.20x = 326,914,567.57
  5. Step 5: Solve for x
    x = 326,914,567.57/18,896.20
  6. Step 6: Final answer
    x = 17,300.55

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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.