Home / 15,766.75-21,758.30-10,993.69

Finding the Fourth Proportional to 15,766.75, 21,758.30 and 10,993.69

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Solution

The fourth proportional to 15,766.75, 21,758.30 and 10,993.69 is: 15,171.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,766.75 : 21,758.30 = 10,993.69 : x
  2. Step 2: Convert to fraction form
    15,766.75/21,758.30 = 10,993.69/x
  3. Step 3: Cross multiply
    15,766.75x = 21,758.30 × 10,993.69
  4. Step 4: Simplify right side
    15,766.75x = 239,204,005.13
  5. Step 5: Solve for x
    x = 239,204,005.13/15,766.75
  6. Step 6: Final answer
    x = 15,171.42

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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.