Home / 11,139.12-16,703.68-3,348.52

Finding the Fourth Proportional to 11,139.12, 16,703.68 and 3,348.52

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Solution

The fourth proportional to 11,139.12, 16,703.68 and 3,348.52 is: 5,021.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,139.12 : 16,703.68 = 3,348.52 : x
  2. Step 2: Convert to fraction form
    11,139.12/16,703.68 = 3,348.52/x
  3. Step 3: Cross multiply
    11,139.12x = 16,703.68 × 3,348.52
  4. Step 4: Simplify right side
    11,139.12x = 55,932,606.55
  5. Step 5: Solve for x
    x = 55,932,606.55/11,139.12
  6. Step 6: Final answer
    x = 5,021.28

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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.