Home / 15,834.82-21,849.58-9,120.73

Finding the Fourth Proportional to 15,834.82, 21,849.58 and 9,120.73

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Solution

The fourth proportional to 15,834.82, 21,849.58 and 9,120.73 is: 12,585.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,834.82 : 21,849.58 = 9,120.73 : x
  2. Step 2: Convert to fraction form
    15,834.82/21,849.58 = 9,120.73/x
  3. Step 3: Cross multiply
    15,834.82x = 21,849.58 × 9,120.73
  4. Step 4: Simplify right side
    15,834.82x = 199,284,119.79
  5. Step 5: Solve for x
    x = 199,284,119.79/15,834.82
  6. Step 6: Final answer
    x = 12,585.18

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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.