Home / 8,415.25-11,613.18-4,879.60

Finding the Fourth Proportional to 8,415.25, 11,613.18 and 4,879.60

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Solution

The fourth proportional to 8,415.25, 11,613.18 and 4,879.60 is: 6,733.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,415.25 : 11,613.18 = 4,879.60 : x
  2. Step 2: Convert to fraction form
    8,415.25/11,613.18 = 4,879.60/x
  3. Step 3: Cross multiply
    8,415.25x = 11,613.18 × 4,879.60
  4. Step 4: Simplify right side
    8,415.25x = 56,667,673.13
  5. Step 5: Solve for x
    x = 56,667,673.13/8,415.25
  6. Step 6: Final answer
    x = 6,733.93

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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.