Home / 8,787.68-13,173.28-2,940.96

Finding the Fourth Proportional to 8,787.68, 13,173.28 and 2,940.96

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Solution

The fourth proportional to 8,787.68, 13,173.28 and 2,940.96 is: 4,408.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,787.68 : 13,173.28 = 2,940.96 : x
  2. Step 2: Convert to fraction form
    8,787.68/13,173.28 = 2,940.96/x
  3. Step 3: Cross multiply
    8,787.68x = 13,173.28 × 2,940.96
  4. Step 4: Simplify right side
    8,787.68x = 38,742,089.55
  5. Step 5: Solve for x
    x = 38,742,089.55/8,787.68
  6. Step 6: Final answer
    x = 4,408.68

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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.