Home / 15,938.10-21,992.43-8,863.17

Finding the Fourth Proportional to 15,938.10, 21,992.43 and 8,863.17

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Solution

The fourth proportional to 15,938.10, 21,992.43 and 8,863.17 is: 12,229.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,938.10 : 21,992.43 = 8,863.17 : x
  2. Step 2: Convert to fraction form
    15,938.10/21,992.43 = 8,863.17/x
  3. Step 3: Cross multiply
    15,938.10x = 21,992.43 × 8,863.17
  4. Step 4: Simplify right side
    15,938.10x = 194,922,645.80
  5. Step 5: Solve for x
    x = 194,922,645.80/15,938.10
  6. Step 6: Final answer
    x = 12,229.98

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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.