Home / 8,455.30-11,669.67-5,622.73

Finding the Fourth Proportional to 8,455.30, 11,669.67 and 5,622.73

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Solution

The fourth proportional to 8,455.30, 11,669.67 and 5,622.73 is: 7,760.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,455.30 : 11,669.67 = 5,622.73 : x
  2. Step 2: Convert to fraction form
    8,455.30/11,669.67 = 5,622.73/x
  3. Step 3: Cross multiply
    8,455.30x = 11,669.67 × 5,622.73
  4. Step 4: Simplify right side
    8,455.30x = 65,615,403.60
  5. Step 5: Solve for x
    x = 65,615,403.60/8,455.30
  6. Step 6: Final answer
    x = 7,760.27

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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.