Home / 10,099.44-15,152.25-5,172.57

Finding the Fourth Proportional to 10,099.44, 15,152.25 and 5,172.57

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Solution

The fourth proportional to 10,099.44, 15,152.25 and 5,172.57 is: 7,760.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,099.44 : 15,152.25 = 5,172.57 : x
  2. Step 2: Convert to fraction form
    10,099.44/15,152.25 = 5,172.57/x
  3. Step 3: Cross multiply
    10,099.44x = 15,152.25 × 5,172.57
  4. Step 4: Simplify right side
    10,099.44x = 78,376,073.78
  5. Step 5: Solve for x
    x = 78,376,073.78/10,099.44
  6. Step 6: Final answer
    x = 7,760.44

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1.5x scale

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.