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Finding the Fourth Proportional to 8,971.09, 12,367.28 and 6,310.24

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Solution

The fourth proportional to 8,971.09, 12,367.28 and 6,310.24 is: 8,699.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,971.09 : 12,367.28 = 6,310.24 : x
  2. Step 2: Convert to fraction form
    8,971.09/12,367.28 = 6,310.24/x
  3. Step 3: Cross multiply
    8,971.09x = 12,367.28 × 6,310.24
  4. Step 4: Simplify right side
    8,971.09x = 78,040,502.05
  5. Step 5: Solve for x
    x = 78,040,502.05/8,971.09
  6. Step 6: Final answer
    x = 8,699.11

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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.