Home / 15,768.73-21,759.85-9,049.62

Finding the Fourth Proportional to 15,768.73, 21,759.85 and 9,049.62

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Solution

The fourth proportional to 15,768.73, 21,759.85 and 9,049.62 is: 12,487.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,768.73 : 21,759.85 = 9,049.62 : x
  2. Step 2: Convert to fraction form
    15,768.73/21,759.85 = 9,049.62/x
  3. Step 3: Cross multiply
    15,768.73x = 21,759.85 × 9,049.62
  4. Step 4: Simplify right side
    15,768.73x = 196,918,479.39
  5. Step 5: Solve for x
    x = 196,918,479.39/15,768.73
  6. Step 6: Final answer
    x = 12,487.91

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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.