Home / 10,974.31-15,138.38-6,727.42

Finding the Fourth Proportional to 10,974.31, 15,138.38 and 6,727.42

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Solution

The fourth proportional to 10,974.31, 15,138.38 and 6,727.42 is: 9,280.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,974.31 : 15,138.38 = 6,727.42 : x
  2. Step 2: Convert to fraction form
    10,974.31/15,138.38 = 6,727.42/x
  3. Step 3: Cross multiply
    10,974.31x = 15,138.38 × 6,727.42
  4. Step 4: Simplify right side
    10,974.31x = 101,842,276.12
  5. Step 5: Solve for x
    x = 101,842,276.12/10,974.31
  6. Step 6: Final answer
    x = 9,280.06

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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.