Home / 10,943.81-16,419.21-3,919.08

Finding the Fourth Proportional to 10,943.81, 16,419.21 and 3,919.08

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Solution

The fourth proportional to 10,943.81, 16,419.21 and 3,919.08 is: 5,879.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,943.81 : 16,419.21 = 3,919.08 : x
  2. Step 2: Convert to fraction form
    10,943.81/16,419.21 = 3,919.08/x
  3. Step 3: Cross multiply
    10,943.81x = 16,419.21 × 3,919.08
  4. Step 4: Simplify right side
    10,943.81x = 64,348,244.40
  5. Step 5: Solve for x
    x = 64,348,244.40/10,943.81
  6. Step 6: Final answer
    x = 5,879.88

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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.