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Finding the Fourth Proportional to 9,118.68, 13,682.27 and 8,971.26

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Solution

The fourth proportional to 9,118.68, 13,682.27 and 8,971.26 is: 13,461.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,118.68 : 13,682.27 = 8,971.26 : x
  2. Step 2: Convert to fraction form
    9,118.68/13,682.27 = 8,971.26/x
  3. Step 3: Cross multiply
    9,118.68x = 13,682.27 × 8,971.26
  4. Step 4: Simplify right side
    9,118.68x = 122,747,122.22
  5. Step 5: Solve for x
    x = 122,747,122.22/9,118.68
  6. Step 6: Final answer
    x = 13,461.07

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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.