Home / 8,450.12-11,665.24-5,622.20

Finding the Fourth Proportional to 8,450.12, 11,665.24 and 5,622.20

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Solution

The fourth proportional to 8,450.12, 11,665.24 and 5,622.20 is: 7,761.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,450.12 : 11,665.24 = 5,622.20 : x
  2. Step 2: Convert to fraction form
    8,450.12/11,665.24 = 5,622.20/x
  3. Step 3: Cross multiply
    8,450.12x = 11,665.24 × 5,622.20
  4. Step 4: Simplify right side
    8,450.12x = 65,584,312.33
  5. Step 5: Solve for x
    x = 65,584,312.33/8,450.12
  6. Step 6: Final answer
    x = 7,761.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.