Home / 15,713.30-21,684.31-8,998.92

Finding the Fourth Proportional to 15,713.30, 21,684.31 and 8,998.92

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Solution

The fourth proportional to 15,713.30, 21,684.31 and 8,998.92 is: 12,418.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,713.30 : 21,684.31 = 8,998.92 : x
  2. Step 2: Convert to fraction form
    15,713.30/21,684.31 = 8,998.92/x
  3. Step 3: Cross multiply
    15,713.30x = 21,684.31 × 8,998.92
  4. Step 4: Simplify right side
    15,713.30x = 195,135,348.45
  5. Step 5: Solve for x
    x = 195,135,348.45/15,713.30
  6. Step 6: Final answer
    x = 12,418.48

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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.