Home / 10,114.22-15,161.99-5,172.98

Finding the Fourth Proportional to 10,114.22, 15,161.99 and 5,172.98

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Solution

The fourth proportional to 10,114.22, 15,161.99 and 5,172.98 is: 7,754.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,114.22 : 15,161.99 = 5,172.98 : x
  2. Step 2: Convert to fraction form
    10,114.22/15,161.99 = 5,172.98/x
  3. Step 3: Cross multiply
    10,114.22x = 15,161.99 × 5,172.98
  4. Step 4: Simplify right side
    10,114.22x = 78,432,569.36
  5. Step 5: Solve for x
    x = 78,432,569.36/10,114.22
  6. Step 6: Final answer
    x = 7,754.68

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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.