Home / 11,787.15-17,679.51-3,995.76

Finding the Fourth Proportional to 11,787.15, 17,679.51 and 3,995.76

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Solution

The fourth proportional to 11,787.15, 17,679.51 and 3,995.76 is: 5,993.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,787.15 : 17,679.51 = 3,995.76 : x
  2. Step 2: Convert to fraction form
    11,787.15/17,679.51 = 3,995.76/x
  3. Step 3: Cross multiply
    11,787.15x = 17,679.51 × 3,995.76
  4. Step 4: Simplify right side
    11,787.15x = 70,643,078.88
  5. Step 5: Solve for x
    x = 70,643,078.88/11,787.15
  6. Step 6: Final answer
    x = 5,993.23

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1.5x scale

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.