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Finding the Fourth Proportional to 26,486.98, 39,730.48 and 6,764.84

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Solution

The fourth proportional to 26,486.98, 39,730.48 and 6,764.84 is: 10,147.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,486.98 : 39,730.48 = 6,764.84 : x
  2. Step 2: Convert to fraction form
    26,486.98/39,730.48 = 6,764.84/x
  3. Step 3: Cross multiply
    26,486.98x = 39,730.48 × 6,764.84
  4. Step 4: Simplify right side
    26,486.98x = 268,770,340.32
  5. Step 5: Solve for x
    x = 268,770,340.32/26,486.98
  6. Step 6: Final answer
    x = 10,147.26

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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.