Home / 11,125.81-16,678.99-5,571.37

Finding the Fourth Proportional to 11,125.81, 16,678.99 and 5,571.37

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Solution

The fourth proportional to 11,125.81, 16,678.99 and 5,571.37 is: 8,352.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,125.81 : 16,678.99 = 5,571.37 : x
  2. Step 2: Convert to fraction form
    11,125.81/16,678.99 = 5,571.37/x
  3. Step 3: Cross multiply
    11,125.81x = 16,678.99 × 5,571.37
  4. Step 4: Simplify right side
    11,125.81x = 92,924,824.52
  5. Step 5: Solve for x
    x = 92,924,824.52/11,125.81
  6. Step 6: Final answer
    x = 8,352.19

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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.