Home / 7,959.02-11,938.73-2,115.62

Finding the Fourth Proportional to 7,959.02, 11,938.73 and 2,115.62

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Solution

The fourth proportional to 7,959.02, 11,938.73 and 2,115.62 is: 3,173.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,959.02 : 11,938.73 = 2,115.62 : x
  2. Step 2: Convert to fraction form
    7,959.02/11,938.73 = 2,115.62/x
  3. Step 3: Cross multiply
    7,959.02x = 11,938.73 × 2,115.62
  4. Step 4: Simplify right side
    7,959.02x = 25,257,815.96
  5. Step 5: Solve for x
    x = 25,257,815.96/7,959.02
  6. Step 6: Final answer
    x = 3,173.48

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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.