Home / 11,138.31-16,697.75-5,583.87

Finding the Fourth Proportional to 11,138.31, 16,697.75 and 5,583.87

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Solution

The fourth proportional to 11,138.31, 16,697.75 and 5,583.87 is: 8,370.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,138.31 : 16,697.75 = 5,583.87 : x
  2. Step 2: Convert to fraction form
    11,138.31/16,697.75 = 5,583.87/x
  3. Step 3: Cross multiply
    11,138.31x = 16,697.75 × 5,583.87
  4. Step 4: Simplify right side
    11,138.31x = 93,238,037.37
  5. Step 5: Solve for x
    x = 93,238,037.37/11,138.31
  6. Step 6: Final answer
    x = 8,370.93

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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.