Home / 11,764.79-17,653.23-7,818.75

Finding the Fourth Proportional to 11,764.79, 17,653.23 and 7,818.75

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Solution

The fourth proportional to 11,764.79, 17,653.23 and 7,818.75 is: 11,732.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,764.79 : 17,653.23 = 7,818.75 : x
  2. Step 2: Convert to fraction form
    11,764.79/17,653.23 = 7,818.75/x
  3. Step 3: Cross multiply
    11,764.79x = 17,653.23 × 7,818.75
  4. Step 4: Simplify right side
    11,764.79x = 138,026,230.72
  5. Step 5: Solve for x
    x = 138,026,230.72/11,764.79
  6. Step 6: Final answer
    x = 11,732.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.