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Finding the Fourth Proportional to 8,626.26, 11,911.14 and 7,962.87

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Solution

The fourth proportional to 8,626.26, 11,911.14 and 7,962.87 is: 10,995.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,626.26 : 11,911.14 = 7,962.87 : x
  2. Step 2: Convert to fraction form
    8,626.26/11,911.14 = 7,962.87/x
  3. Step 3: Cross multiply
    8,626.26x = 11,911.14 × 7,962.87
  4. Step 4: Simplify right side
    8,626.26x = 94,846,859.37
  5. Step 5: Solve for x
    x = 94,846,859.37/8,626.26
  6. Step 6: Final answer
    x = 10,995.13

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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.