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Finding the Fourth Proportional to 11,393.55, 17,083.91 and 8,754.51

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Solution

The fourth proportional to 11,393.55, 17,083.91 and 8,754.51 is: 13,126.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,393.55 : 17,083.91 = 8,754.51 : x
  2. Step 2: Convert to fraction form
    11,393.55/17,083.91 = 8,754.51/x
  3. Step 3: Cross multiply
    11,393.55x = 17,083.91 × 8,754.51
  4. Step 4: Simplify right side
    11,393.55x = 149,561,217.16
  5. Step 5: Solve for x
    x = 149,561,217.16/11,393.55
  6. Step 6: Final answer
    x = 13,126.83

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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.