Home / 10,811.40-16,207.30-3,884.28

Finding the Fourth Proportional to 10,811.40, 16,207.30 and 3,884.28

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Solution

The fourth proportional to 10,811.40, 16,207.30 and 3,884.28 is: 5,822.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,811.40 : 16,207.30 = 3,884.28 : x
  2. Step 2: Convert to fraction form
    10,811.40/16,207.30 = 3,884.28/x
  3. Step 3: Cross multiply
    10,811.40x = 16,207.30 × 3,884.28
  4. Step 4: Simplify right side
    10,811.40x = 62,953,691.24
  5. Step 5: Solve for x
    x = 62,953,691.24/10,811.40
  6. Step 6: Final answer
    x = 5,822.90

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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.