Home / 11,972.95-17,959.47-4,179.94

Finding the Fourth Proportional to 11,972.95, 17,959.47 and 4,179.94

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Solution

The fourth proportional to 11,972.95, 17,959.47 and 4,179.94 is: 6,269.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,972.95 : 17,959.47 = 4,179.94 : x
  2. Step 2: Convert to fraction form
    11,972.95/17,959.47 = 4,179.94/x
  3. Step 3: Cross multiply
    11,972.95x = 17,959.47 × 4,179.94
  4. Step 4: Simplify right side
    11,972.95x = 75,069,507.03
  5. Step 5: Solve for x
    x = 75,069,507.03/11,972.95
  6. Step 6: Final answer
    x = 6,269.93

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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.