Home / 15,922.96-21,972.70-8,849.16

Finding the Fourth Proportional to 15,922.96, 21,972.70 and 8,849.16

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Solution

The fourth proportional to 15,922.96, 21,972.70 and 8,849.16 is: 12,211.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,922.96 : 21,972.70 = 8,849.16 : x
  2. Step 2: Convert to fraction form
    15,922.96/21,972.70 = 8,849.16/x
  3. Step 3: Cross multiply
    15,922.96x = 21,972.70 × 8,849.16
  4. Step 4: Simplify right side
    15,922.96x = 194,439,937.93
  5. Step 5: Solve for x
    x = 194,439,937.93/15,922.96
  6. Step 6: Final answer
    x = 12,211.29

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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.