Home / 10,781.64-16,173.06-3,856.14

Finding the Fourth Proportional to 10,781.64, 16,173.06 and 3,856.14

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Solution

The fourth proportional to 10,781.64, 16,173.06 and 3,856.14 is: 5,784.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,781.64 : 16,173.06 = 3,856.14 : x
  2. Step 2: Convert to fraction form
    10,781.64/16,173.06 = 3,856.14/x
  3. Step 3: Cross multiply
    10,781.64x = 16,173.06 × 3,856.14
  4. Step 4: Simplify right side
    10,781.64x = 62,365,583.59
  5. Step 5: Solve for x
    x = 62,365,583.59/10,781.64
  6. Step 6: Final answer
    x = 5,784.42

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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.