Home / 15,902.12-21,945.92-8,828.68

Finding the Fourth Proportional to 15,902.12, 21,945.92 and 8,828.68

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Solution

The fourth proportional to 15,902.12, 21,945.92 and 8,828.68 is: 12,184.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,902.12 : 21,945.92 = 8,828.68 : x
  2. Step 2: Convert to fraction form
    15,902.12/21,945.92 = 8,828.68/x
  3. Step 3: Cross multiply
    15,902.12x = 21,945.92 × 8,828.68
  4. Step 4: Simplify right side
    15,902.12x = 193,753,504.99
  5. Step 5: Solve for x
    x = 193,753,504.99/15,902.12
  6. Step 6: Final answer
    x = 12,184.13

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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.