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Finding the Fourth Proportional to 8,619.08, 11,900.04 and 6,626.12

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Solution

The fourth proportional to 8,619.08, 11,900.04 and 6,626.12 is: 9,148.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,619.08 : 11,900.04 = 6,626.12 : x
  2. Step 2: Convert to fraction form
    8,619.08/11,900.04 = 6,626.12/x
  3. Step 3: Cross multiply
    8,619.08x = 11,900.04 × 6,626.12
  4. Step 4: Simplify right side
    8,619.08x = 78,851,093.04
  5. Step 5: Solve for x
    x = 78,851,093.04/8,619.08
  6. Step 6: Final answer
    x = 9,148.43

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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.