Home / 8,575.85-12,879.62-5,134.25

Finding the Fourth Proportional to 8,575.85, 12,879.62 and 5,134.25

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Solution

The fourth proportional to 8,575.85, 12,879.62 and 5,134.25 is: 7,710.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,575.85 : 12,879.62 = 5,134.25 : x
  2. Step 2: Convert to fraction form
    8,575.85/12,879.62 = 5,134.25/x
  3. Step 3: Cross multiply
    8,575.85x = 12,879.62 × 5,134.25
  4. Step 4: Simplify right side
    8,575.85x = 66,127,163.31
  5. Step 5: Solve for x
    x = 66,127,163.31/8,575.85
  6. Step 6: Final answer
    x = 7,710.86

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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.