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Finding the Fourth Proportional to 26,360, 39,540 and 7,892

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Solution

The fourth proportional to 26,360, 39,540 and 7,892 is: 11,838

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,360 : 39,540 = 7,892 : x
  2. Step 2: Convert to fraction form
    26,360/39,540 = 7,892/x
  3. Step 3: Cross multiply
    26,360x = 39,540 × 7,892
  4. Step 4: Simplify right side
    26,360x = 312,049,680
  5. Step 5: Solve for x
    x = 312,049,680/26,360
  6. Step 6: Final answer
    x = 11,838

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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.