Home / 10,120.07-15,181.91-3,099.94

Finding the Fourth Proportional to 10,120.07, 15,181.91 and 3,099.94

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Solution

The fourth proportional to 10,120.07, 15,181.91 and 3,099.94 is: 4,650.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,120.07 : 15,181.91 = 3,099.94 : x
  2. Step 2: Convert to fraction form
    10,120.07/15,181.91 = 3,099.94/x
  3. Step 3: Cross multiply
    10,120.07x = 15,181.91 × 3,099.94
  4. Step 4: Simplify right side
    10,120.07x = 47,063,010.09
  5. Step 5: Solve for x
    x = 47,063,010.09/10,120.07
  6. Step 6: Final answer
    x = 4,650.46

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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.