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Finding the Fourth Proportional to 17,790.52, 26,685.24 and 7,402

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Solution

The fourth proportional to 17,790.52, 26,685.24 and 7,402 is: 11,102.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,790.52 : 26,685.24 = 7,402 : x
  2. Step 2: Convert to fraction form
    17,790.52/26,685.24 = 7,402/x
  3. Step 3: Cross multiply
    17,790.52x = 26,685.24 × 7,402
  4. Step 4: Simplify right side
    17,790.52x = 197,524,146.48
  5. Step 5: Solve for x
    x = 197,524,146.48/17,790.52
  6. Step 6: Final answer
    x = 11,102.78

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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.