Home / 7,655.05-11,478.46-3,148.15

Finding the Fourth Proportional to 7,655.05, 11,478.46 and 3,148.15

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Solution

The fourth proportional to 7,655.05, 11,478.46 and 3,148.15 is: 4,720.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,655.05 : 11,478.46 = 3,148.15 : x
  2. Step 2: Convert to fraction form
    7,655.05/11,478.46 = 3,148.15/x
  3. Step 3: Cross multiply
    7,655.05x = 11,478.46 × 3,148.15
  4. Step 4: Simplify right side
    7,655.05x = 36,135,913.85
  5. Step 5: Solve for x
    x = 36,135,913.85/7,655.05
  6. Step 6: Final answer
    x = 4,720.53

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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.