Home / 15,794.90-21,796.82-8,624.78

Finding the Fourth Proportional to 15,794.90, 21,796.82 and 8,624.78

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Solution

The fourth proportional to 15,794.90, 21,796.82 and 8,624.78 is: 11,902.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,794.90 : 21,796.82 = 8,624.78 : x
  2. Step 2: Convert to fraction form
    15,794.90/21,796.82 = 8,624.78/x
  3. Step 3: Cross multiply
    15,794.90x = 21,796.82 × 8,624.78
  4. Step 4: Simplify right side
    15,794.90x = 187,992,727.04
  5. Step 5: Solve for x
    x = 187,992,727.04/15,794.90
  6. Step 6: Final answer
    x = 11,902.12

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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.