Home / 7,622.50-11,418.96-5,617.56

Finding the Fourth Proportional to 7,622.50, 11,418.96 and 5,617.56

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Solution

The fourth proportional to 7,622.50, 11,418.96 and 5,617.56 is: 8,415.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,622.50 : 11,418.96 = 5,617.56 : x
  2. Step 2: Convert to fraction form
    7,622.50/11,418.96 = 5,617.56/x
  3. Step 3: Cross multiply
    7,622.50x = 11,418.96 × 5,617.56
  4. Step 4: Simplify right side
    7,622.50x = 64,146,621.80
  5. Step 5: Solve for x
    x = 64,146,621.80/7,622.50
  6. Step 6: Final answer
    x = 8,415.43

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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.