Home / 7,014.97-9,680.61-3,871.09

Finding the Fourth Proportional to 7,014.97, 9,680.61 and 3,871.09

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Solution

The fourth proportional to 7,014.97, 9,680.61 and 3,871.09 is: 5,342.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,014.97 : 9,680.61 = 3,871.09 : x
  2. Step 2: Convert to fraction form
    7,014.97/9,680.61 = 3,871.09/x
  3. Step 3: Cross multiply
    7,014.97x = 9,680.61 × 3,871.09
  4. Step 4: Simplify right side
    7,014.97x = 37,474,512.56
  5. Step 5: Solve for x
    x = 37,474,512.56/7,014.97
  6. Step 6: Final answer
    x = 5,342.08

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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.