Home / 11,177.87-16,766.80-5,316.71

Finding the Fourth Proportional to 11,177.87, 16,766.80 and 5,316.71

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Solution

The fourth proportional to 11,177.87, 16,766.80 and 5,316.71 is: 7,975.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,177.87 : 16,766.80 = 5,316.71 : x
  2. Step 2: Convert to fraction form
    11,177.87/16,766.80 = 5,316.71/x
  3. Step 3: Cross multiply
    11,177.87x = 16,766.80 × 5,316.71
  4. Step 4: Simplify right side
    11,177.87x = 89,144,116.10
  5. Step 5: Solve for x
    x = 89,144,116.10/11,177.87
  6. Step 6: Final answer
    x = 7,975.06

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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.