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Finding the Fourth Proportional to 17,745.63, 26,618.46 and 9,959.91

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Solution

The fourth proportional to 17,745.63, 26,618.46 and 9,959.91 is: 14,939.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,745.63 : 26,618.46 = 9,959.91 : x
  2. Step 2: Convert to fraction form
    17,745.63/26,618.46 = 9,959.91/x
  3. Step 3: Cross multiply
    17,745.63x = 26,618.46 × 9,959.91
  4. Step 4: Simplify right side
    17,745.63x = 265,117,465.94
  5. Step 5: Solve for x
    x = 265,117,465.94/17,745.63
  6. Step 6: Final answer
    x = 14,939.87

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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.