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Finding the Fourth Proportional to 17,992, 26,988 and 5,680

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Solution

The fourth proportional to 17,992, 26,988 and 5,680 is: 8,520

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,992 : 26,988 = 5,680 : x
  2. Step 2: Convert to fraction form
    17,992/26,988 = 5,680/x
  3. Step 3: Cross multiply
    17,992x = 26,988 × 5,680
  4. Step 4: Simplify right side
    17,992x = 153,291,840
  5. Step 5: Solve for x
    x = 153,291,840/17,992
  6. Step 6: Final answer
    x = 8,520

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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.