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Finding the Fourth Proportional to 6,368.80, 9,559.09 and 3,251.11

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Solution

The fourth proportional to 6,368.80, 9,559.09 and 3,251.11 is: 4,879.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,368.80 : 9,559.09 = 3,251.11 : x
  2. Step 2: Convert to fraction form
    6,368.80/9,559.09 = 3,251.11/x
  3. Step 3: Cross multiply
    6,368.80x = 9,559.09 × 3,251.11
  4. Step 4: Simplify right side
    6,368.80x = 31,077,668.92
  5. Step 5: Solve for x
    x = 31,077,668.92/6,368.80
  6. Step 6: Final answer
    x = 4,879.67

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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.