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Finding the Fourth Proportional to 17,390.20, 26,098.10 and 7,009.40

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Solution

The fourth proportional to 17,390.20, 26,098.10 and 7,009.40 is: 10,519.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,390.20 : 26,098.10 = 7,009.40 : x
  2. Step 2: Convert to fraction form
    17,390.20/26,098.10 = 7,009.40/x
  3. Step 3: Cross multiply
    17,390.20x = 26,098.10 × 7,009.40
  4. Step 4: Simplify right side
    17,390.20x = 182,932,022.14
  5. Step 5: Solve for x
    x = 182,932,022.14/17,390.20
  6. Step 6: Final answer
    x = 10,519.26

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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.