Home / 8,415.54-11,613.28-4,879.08

Finding the Fourth Proportional to 8,415.54, 11,613.28 and 4,879.08

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Solution

The fourth proportional to 8,415.54, 11,613.28 and 4,879.08 is: 6,733.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,415.54 : 11,613.28 = 4,879.08 : x
  2. Step 2: Convert to fraction form
    8,415.54/11,613.28 = 4,879.08/x
  3. Step 3: Cross multiply
    8,415.54x = 11,613.28 × 4,879.08
  4. Step 4: Simplify right side
    8,415.54x = 56,662,122.18
  5. Step 5: Solve for x
    x = 56,662,122.18/8,415.54
  6. Step 6: Final answer
    x = 6,733.03

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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.