Home / 15,768.26-21,760.34-8,694.93

Finding the Fourth Proportional to 15,768.26, 21,760.34 and 8,694.93

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Solution

The fourth proportional to 15,768.26, 21,760.34 and 8,694.93 is: 11,999.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,768.26 : 21,760.34 = 8,694.93 : x
  2. Step 2: Convert to fraction form
    15,768.26/21,760.34 = 8,694.93/x
  3. Step 3: Cross multiply
    15,768.26x = 21,760.34 × 8,694.93
  4. Step 4: Simplify right side
    15,768.26x = 189,204,633.08
  5. Step 5: Solve for x
    x = 189,204,633.08/15,768.26
  6. Step 6: Final answer
    x = 11,999.08

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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.