Home / 18,895.88-28,335.62-5,745.17

Finding the Fourth Proportional to 18,895.88, 28,335.62 and 5,745.17

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Solution

The fourth proportional to 18,895.88, 28,335.62 and 5,745.17 is: 8,615.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,895.88 : 28,335.62 = 5,745.17 : x
  2. Step 2: Convert to fraction form
    18,895.88/28,335.62 = 5,745.17/x
  3. Step 3: Cross multiply
    18,895.88x = 28,335.62 × 5,745.17
  4. Step 4: Simplify right side
    18,895.88x = 162,793,039.16
  5. Step 5: Solve for x
    x = 162,793,039.16/18,895.88
  6. Step 6: Final answer
    x = 8,615.27

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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.