Home / 7,787.63-11,682.14-3,106.50

Finding the Fourth Proportional to 7,787.63, 11,682.14 and 3,106.50

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Solution

The fourth proportional to 7,787.63, 11,682.14 and 3,106.50 is: 4,660.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,787.63 : 11,682.14 = 3,106.50 : x
  2. Step 2: Convert to fraction form
    7,787.63/11,682.14 = 3,106.50/x
  3. Step 3: Cross multiply
    7,787.63x = 11,682.14 × 3,106.50
  4. Step 4: Simplify right side
    7,787.63x = 36,290,552.38
  5. Step 5: Solve for x
    x = 36,290,552.38/7,787.63
  6. Step 6: Final answer
    x = 4,660.03

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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.