Home / 10,120.47-15,181.16-3,099.97

Finding the Fourth Proportional to 10,120.47, 15,181.16 and 3,099.97

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Solution

The fourth proportional to 10,120.47, 15,181.16 and 3,099.97 is: 4,650.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,120.47 : 15,181.16 = 3,099.97 : x
  2. Step 2: Convert to fraction form
    10,120.47/15,181.16 = 3,099.97/x
  3. Step 3: Cross multiply
    10,120.47x = 15,181.16 × 3,099.97
  4. Step 4: Simplify right side
    10,120.47x = 47,061,157.12
  5. Step 5: Solve for x
    x = 47,061,157.12/10,120.47
  6. Step 6: Final answer
    x = 4,650.10

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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.