Home / 7,787.12-11,680.73-1,943.73

Finding the Fourth Proportional to 7,787.12, 11,680.73 and 1,943.73

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Solution

The fourth proportional to 7,787.12, 11,680.73 and 1,943.73 is: 2,915.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,787.12 : 11,680.73 = 1,943.73 : x
  2. Step 2: Convert to fraction form
    7,787.12/11,680.73 = 1,943.73/x
  3. Step 3: Cross multiply
    7,787.12x = 11,680.73 × 1,943.73
  4. Step 4: Simplify right side
    7,787.12x = 22,704,185.32
  5. Step 5: Solve for x
    x = 22,704,185.32/7,787.12
  6. Step 6: Final answer
    x = 2,915.61

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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.