Home / 15,693.24-21,660.41-8,982.75

Finding the Fourth Proportional to 15,693.24, 21,660.41 and 8,982.75

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Solution

The fourth proportional to 15,693.24, 21,660.41 and 8,982.75 is: 12,398.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,693.24 : 21,660.41 = 8,982.75 : x
  2. Step 2: Convert to fraction form
    15,693.24/21,660.41 = 8,982.75/x
  3. Step 3: Cross multiply
    15,693.24x = 21,660.41 × 8,982.75
  4. Step 4: Simplify right side
    15,693.24x = 194,570,029.77
  5. Step 5: Solve for x
    x = 194,570,029.77/15,693.24
  6. Step 6: Final answer
    x = 12,398.33

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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.