Home / 11,139.78-16,697.06-4,562.36

Finding the Fourth Proportional to 11,139.78, 16,697.06 and 4,562.36

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Solution

The fourth proportional to 11,139.78, 16,697.06 and 4,562.36 is: 6,838.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,139.78 : 16,697.06 = 4,562.36 : x
  2. Step 2: Convert to fraction form
    11,139.78/16,697.06 = 4,562.36/x
  3. Step 3: Cross multiply
    11,139.78x = 16,697.06 × 4,562.36
  4. Step 4: Simplify right side
    11,139.78x = 76,177,998.66
  5. Step 5: Solve for x
    x = 76,177,998.66/11,139.78
  6. Step 6: Final answer
    x = 6,838.38

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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.