Home / 9,271.10-13,906.60-3,115.10

Finding the Fourth Proportional to 9,271.10, 13,906.60 and 3,115.10

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Solution

The fourth proportional to 9,271.10, 13,906.60 and 3,115.10 is: 4,672.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,271.10 : 13,906.60 = 3,115.10 : x
  2. Step 2: Convert to fraction form
    9,271.10/13,906.60 = 3,115.10/x
  3. Step 3: Cross multiply
    9,271.10x = 13,906.60 × 3,115.10
  4. Step 4: Simplify right side
    9,271.10x = 43,320,449.66
  5. Step 5: Solve for x
    x = 43,320,449.66/9,271.10
  6. Step 6: Final answer
    x = 4,672.63

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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.