Home / 8,209.11-11,328.84-4,672.26

Finding the Fourth Proportional to 8,209.11, 11,328.84 and 4,672.26

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Solution

The fourth proportional to 8,209.11, 11,328.84 and 4,672.26 is: 6,447.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,209.11 : 11,328.84 = 4,672.26 : x
  2. Step 2: Convert to fraction form
    8,209.11/11,328.84 = 4,672.26/x
  3. Step 3: Cross multiply
    8,209.11x = 11,328.84 × 4,672.26
  4. Step 4: Simplify right side
    8,209.11x = 52,931,285.98
  5. Step 5: Solve for x
    x = 52,931,285.98/8,209.11
  6. Step 6: Final answer
    x = 6,447.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.