Home / 15,979.29-22,051.52-8,906.16

Finding the Fourth Proportional to 15,979.29, 22,051.52 and 8,906.16

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Solution

The fourth proportional to 15,979.29, 22,051.52 and 8,906.16 is: 12,290.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,979.29 : 22,051.52 = 8,906.16 : x
  2. Step 2: Convert to fraction form
    15,979.29/22,051.52 = 8,906.16/x
  3. Step 3: Cross multiply
    15,979.29x = 22,051.52 × 8,906.16
  4. Step 4: Simplify right side
    15,979.29x = 196,394,487.02
  5. Step 5: Solve for x
    x = 196,394,487.02/15,979.29
  6. Step 6: Final answer
    x = 12,290.57

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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.