Home / 9,327.78-13,986.72-3,479.58

Finding the Fourth Proportional to 9,327.78, 13,986.72 and 3,479.58

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Solution

The fourth proportional to 9,327.78, 13,986.72 and 3,479.58 is: 5,217.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,327.78 : 13,986.72 = 3,479.58 : x
  2. Step 2: Convert to fraction form
    9,327.78/13,986.72 = 3,479.58/x
  3. Step 3: Cross multiply
    9,327.78x = 13,986.72 × 3,479.58
  4. Step 4: Simplify right side
    9,327.78x = 48,667,911.18
  5. Step 5: Solve for x
    x = 48,667,911.18/9,327.78
  6. Step 6: Final answer
    x = 5,217.52

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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.