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Finding the Fourth Proportional to 26,641.62, 39,963.15 and 6,919.74

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Solution

The fourth proportional to 26,641.62, 39,963.15 and 6,919.74 is: 10,379.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,641.62 : 39,963.15 = 6,919.74 : x
  2. Step 2: Convert to fraction form
    26,641.62/39,963.15 = 6,919.74/x
  3. Step 3: Cross multiply
    26,641.62x = 39,963.15 × 6,919.74
  4. Step 4: Simplify right side
    26,641.62x = 276,534,607.58
  5. Step 5: Solve for x
    x = 276,534,607.58/26,641.62
  6. Step 6: Final answer
    x = 10,379.80

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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.