Home / 10,099.33-15,152.09-5,172.46

Finding the Fourth Proportional to 10,099.33, 15,152.09 and 5,172.46

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Solution

The fourth proportional to 10,099.33, 15,152.09 and 5,172.46 is: 7,760.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,099.33 : 15,152.09 = 5,172.46 : x
  2. Step 2: Convert to fraction form
    10,099.33/15,152.09 = 5,172.46/x
  3. Step 3: Cross multiply
    10,099.33x = 15,152.09 × 5,172.46
  4. Step 4: Simplify right side
    10,099.33x = 78,373,579.44
  5. Step 5: Solve for x
    x = 78,373,579.44/10,099.33
  6. Step 6: Final answer
    x = 7,760.28

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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.