Home / 11,451.84-17,172.44-5,211.60

Finding the Fourth Proportional to 11,451.84, 17,172.44 and 5,211.60

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Solution

The fourth proportional to 11,451.84, 17,172.44 and 5,211.60 is: 7,814.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,451.84 : 17,172.44 = 5,211.60 : x
  2. Step 2: Convert to fraction form
    11,451.84/17,172.44 = 5,211.60/x
  3. Step 3: Cross multiply
    11,451.84x = 17,172.44 × 5,211.60
  4. Step 4: Simplify right side
    11,451.84x = 89,495,888.30
  5. Step 5: Solve for x
    x = 89,495,888.30/11,451.84
  6. Step 6: Final answer
    x = 7,814.98

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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.