Home / 10,917.39-16,376.07-3,126.81

Finding the Fourth Proportional to 10,917.39, 16,376.07 and 3,126.81

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Solution

The fourth proportional to 10,917.39, 16,376.07 and 3,126.81 is: 4,690.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,917.39 : 16,376.07 = 3,126.81 : x
  2. Step 2: Convert to fraction form
    10,917.39/16,376.07 = 3,126.81/x
  3. Step 3: Cross multiply
    10,917.39x = 16,376.07 × 3,126.81
  4. Step 4: Simplify right side
    10,917.39x = 51,204,859.44
  5. Step 5: Solve for x
    x = 51,204,859.44/10,917.39
  6. Step 6: Final answer
    x = 4,690.21

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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.