Home / 9,171.12-13,756.68-3,327.72

Finding the Fourth Proportional to 9,171.12, 13,756.68 and 3,327.72

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Solution

The fourth proportional to 9,171.12, 13,756.68 and 3,327.72 is: 4,991.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,171.12 : 13,756.68 = 3,327.72 : x
  2. Step 2: Convert to fraction form
    9,171.12/13,756.68 = 3,327.72/x
  3. Step 3: Cross multiply
    9,171.12x = 13,756.68 × 3,327.72
  4. Step 4: Simplify right side
    9,171.12x = 45,778,379.17
  5. Step 5: Solve for x
    x = 45,778,379.17/9,171.12
  6. Step 6: Final answer
    x = 4,991.58

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1.5x scale

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.