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Finding the Fourth Proportional to 17,920.88, 26,881.29 and 7,396.82

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Solution

The fourth proportional to 17,920.88, 26,881.29 and 7,396.82 is: 11,095.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,920.88 : 26,881.29 = 7,396.82 : x
  2. Step 2: Convert to fraction form
    17,920.88/26,881.29 = 7,396.82/x
  3. Step 3: Cross multiply
    17,920.88x = 26,881.29 × 7,396.82
  4. Step 4: Simplify right side
    17,920.88x = 198,836,063.50
  5. Step 5: Solve for x
    x = 198,836,063.50/17,920.88
  6. Step 6: Final answer
    x = 11,095.22

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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.