Home / 8,682.80-13,027.38-5,174.79

Finding the Fourth Proportional to 8,682.80, 13,027.38 and 5,174.79

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Solution

The fourth proportional to 8,682.80, 13,027.38 and 5,174.79 is: 7,764.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,682.80 : 13,027.38 = 5,174.79 : x
  2. Step 2: Convert to fraction form
    8,682.80/13,027.38 = 5,174.79/x
  3. Step 3: Cross multiply
    8,682.80x = 13,027.38 × 5,174.79
  4. Step 4: Simplify right side
    8,682.80x = 67,413,916.60
  5. Step 5: Solve for x
    x = 67,413,916.60/8,682.80
  6. Step 6: Final answer
    x = 7,764.08

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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.