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Finding the Fourth Proportional to 14,081.74, 21,108.64 and 7,844.62

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Solution

The fourth proportional to 14,081.74, 21,108.64 and 7,844.62 is: 11,759.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,081.74 : 21,108.64 = 7,844.62 : x
  2. Step 2: Convert to fraction form
    14,081.74/21,108.64 = 7,844.62/x
  3. Step 3: Cross multiply
    14,081.74x = 21,108.64 × 7,844.62
  4. Step 4: Simplify right side
    14,081.74x = 165,589,259.52
  5. Step 5: Solve for x
    x = 165,589,259.52/14,081.74
  6. Step 6: Final answer
    x = 11,759.15

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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.