Home / 7,865.62-11,787.06-5,919.22

Finding the Fourth Proportional to 7,865.62, 11,787.06 and 5,919.22

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Solution

The fourth proportional to 7,865.62, 11,787.06 and 5,919.22 is: 8,870.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,865.62 : 11,787.06 = 5,919.22 : x
  2. Step 2: Convert to fraction form
    7,865.62/11,787.06 = 5,919.22/x
  3. Step 3: Cross multiply
    7,865.62x = 11,787.06 × 5,919.22
  4. Step 4: Simplify right side
    7,865.62x = 69,770,201.29
  5. Step 5: Solve for x
    x = 69,770,201.29/7,865.62
  6. Step 6: Final answer
    x = 8,870.27

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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.