Home / 9,211.12-13,817.70-3,289.39

Finding the Fourth Proportional to 9,211.12, 13,817.70 and 3,289.39

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Solution

The fourth proportional to 9,211.12, 13,817.70 and 3,289.39 is: 4,934.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,211.12 : 13,817.70 = 3,289.39 : x
  2. Step 2: Convert to fraction form
    9,211.12/13,817.70 = 3,289.39/x
  3. Step 3: Cross multiply
    9,211.12x = 13,817.70 × 3,289.39
  4. Step 4: Simplify right side
    9,211.12x = 45,451,804.20
  5. Step 5: Solve for x
    x = 45,451,804.20/9,211.12
  6. Step 6: Final answer
    x = 4,934.45

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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.