Home / 7,650.70-11,445.36-6,621.89

Finding the Fourth Proportional to 7,650.70, 11,445.36 and 6,621.89

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Solution

The fourth proportional to 7,650.70, 11,445.36 and 6,621.89 is: 9,906.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,650.70 : 11,445.36 = 6,621.89 : x
  2. Step 2: Convert to fraction form
    7,650.70/11,445.36 = 6,621.89/x
  3. Step 3: Cross multiply
    7,650.70x = 11,445.36 × 6,621.89
  4. Step 4: Simplify right side
    7,650.70x = 75,789,914.93
  5. Step 5: Solve for x
    x = 75,789,914.93/7,650.70
  6. Step 6: Final answer
    x = 9,906.27

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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.