Home / 13,164.72-19,725.30-7,959.84

Finding the Fourth Proportional to 13,164.72, 19,725.30 and 7,959.84

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Solution

The fourth proportional to 13,164.72, 19,725.30 and 7,959.84 is: 11,926.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,164.72 : 19,725.30 = 7,959.84 : x
  2. Step 2: Convert to fraction form
    13,164.72/19,725.30 = 7,959.84/x
  3. Step 3: Cross multiply
    13,164.72x = 19,725.30 × 7,959.84
  4. Step 4: Simplify right side
    13,164.72x = 157,010,231.95
  5. Step 5: Solve for x
    x = 157,010,231.95/13,164.72
  6. Step 6: Final answer
    x = 11,926.59

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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.