Home / 15,766.92-21,759.33-8,693.33

Finding the Fourth Proportional to 15,766.92, 21,759.33 and 8,693.33

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Solution

The fourth proportional to 15,766.92, 21,759.33 and 8,693.33 is: 11,997.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,766.92 : 21,759.33 = 8,693.33 : x
  2. Step 2: Convert to fraction form
    15,766.92/21,759.33 = 8,693.33/x
  3. Step 3: Cross multiply
    15,766.92x = 21,759.33 × 8,693.33
  4. Step 4: Simplify right side
    15,766.92x = 189,161,036.27
  5. Step 5: Solve for x
    x = 189,161,036.27/15,766.92
  6. Step 6: Final answer
    x = 11,997.34

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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.