Home / 11,112.85-16,665.80-3,715.58

Finding the Fourth Proportional to 11,112.85, 16,665.80 and 3,715.58

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Solution

The fourth proportional to 11,112.85, 16,665.80 and 3,715.58 is: 5,572.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,112.85 : 16,665.80 = 3,715.58 : x
  2. Step 2: Convert to fraction form
    11,112.85/16,665.80 = 3,715.58/x
  3. Step 3: Cross multiply
    11,112.85x = 16,665.80 × 3,715.58
  4. Step 4: Simplify right side
    11,112.85x = 61,923,113.16
  5. Step 5: Solve for x
    x = 61,923,113.16/11,112.85
  6. Step 6: Final answer
    x = 5,572.21

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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.