Home / 11,137.40-16,696.04-5,211.98

Finding the Fourth Proportional to 11,137.40, 16,696.04 and 5,211.98

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Solution

The fourth proportional to 11,137.40, 16,696.04 and 5,211.98 is: 7,813.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,137.40 : 16,696.04 = 5,211.98 : x
  2. Step 2: Convert to fraction form
    11,137.40/16,696.04 = 5,211.98/x
  3. Step 3: Cross multiply
    11,137.40x = 16,696.04 × 5,211.98
  4. Step 4: Simplify right side
    11,137.40x = 87,019,317.02
  5. Step 5: Solve for x
    x = 87,019,317.02/11,137.40
  6. Step 6: Final answer
    x = 7,813.26

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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.