Home / 8,747.30-13,107.18-5,455.46

Finding the Fourth Proportional to 8,747.30, 13,107.18 and 5,455.46

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Solution

The fourth proportional to 8,747.30, 13,107.18 and 5,455.46 is: 8,174.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,747.30 : 13,107.18 = 5,455.46 : x
  2. Step 2: Convert to fraction form
    8,747.30/13,107.18 = 5,455.46/x
  3. Step 3: Cross multiply
    8,747.30x = 13,107.18 × 5,455.46
  4. Step 4: Simplify right side
    8,747.30x = 71,505,749.43
  5. Step 5: Solve for x
    x = 71,505,749.43/8,747.30
  6. Step 6: Final answer
    x = 8,174.61

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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.