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Finding the Fourth Proportional to 26,378.52, 39,567.50 and 7,910.52

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Solution

The fourth proportional to 26,378.52, 39,567.50 and 7,910.52 is: 11,865.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,378.52 : 39,567.50 = 7,910.52 : x
  2. Step 2: Convert to fraction form
    26,378.52/39,567.50 = 7,910.52/x
  3. Step 3: Cross multiply
    26,378.52x = 39,567.50 × 7,910.52
  4. Step 4: Simplify right side
    26,378.52x = 312,999,500.10
  5. Step 5: Solve for x
    x = 312,999,500.10/26,378.52
  6. Step 6: Final answer
    x = 11,865.70

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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.