Home / 9,787.14-14,673.90-3,121.44

Finding the Fourth Proportional to 9,787.14, 14,673.90 and 3,121.44

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Solution

The fourth proportional to 9,787.14, 14,673.90 and 3,121.44 is: 4,679.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,787.14 : 14,673.90 = 3,121.44 : x
  2. Step 2: Convert to fraction form
    9,787.14/14,673.90 = 3,121.44/x
  3. Step 3: Cross multiply
    9,787.14x = 14,673.90 × 3,121.44
  4. Step 4: Simplify right side
    9,787.14x = 45,803,698.42
  5. Step 5: Solve for x
    x = 45,803,698.42/9,787.14
  6. Step 6: Final answer
    x = 4,679.99

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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.