Home / 8,787.63-13,168.83-3,788.68

Finding the Fourth Proportional to 8,787.63, 13,168.83 and 3,788.68

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Solution

The fourth proportional to 8,787.63, 13,168.83 and 3,788.68 is: 5,677.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,787.63 : 13,168.83 = 3,788.68 : x
  2. Step 2: Convert to fraction form
    8,787.63/13,168.83 = 3,788.68/x
  3. Step 3: Cross multiply
    8,787.63x = 13,168.83 × 3,788.68
  4. Step 4: Simplify right side
    8,787.63x = 49,892,464.13
  5. Step 5: Solve for x
    x = 49,892,464.13/8,787.63
  6. Step 6: Final answer
    x = 5,677.58

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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.