Home / 9,311.79-13,968.55-2,648.43

Finding the Fourth Proportional to 9,311.79, 13,968.55 and 2,648.43

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Solution

The fourth proportional to 9,311.79, 13,968.55 and 2,648.43 is: 3,972.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,311.79 : 13,968.55 = 2,648.43 : x
  2. Step 2: Convert to fraction form
    9,311.79/13,968.55 = 2,648.43/x
  3. Step 3: Cross multiply
    9,311.79x = 13,968.55 × 2,648.43
  4. Step 4: Simplify right side
    9,311.79x = 36,994,726.88
  5. Step 5: Solve for x
    x = 36,994,726.88/9,311.79
  6. Step 6: Final answer
    x = 3,972.89

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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.