Home / 8,115.86-11,199.97-4,760.66

Finding the Fourth Proportional to 8,115.86, 11,199.97 and 4,760.66

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Solution

The fourth proportional to 8,115.86, 11,199.97 and 4,760.66 is: 6,569.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,115.86 : 11,199.97 = 4,760.66 : x
  2. Step 2: Convert to fraction form
    8,115.86/11,199.97 = 4,760.66/x
  3. Step 3: Cross multiply
    8,115.86x = 11,199.97 × 4,760.66
  4. Step 4: Simplify right side
    8,115.86x = 53,319,283.13
  5. Step 5: Solve for x
    x = 53,319,283.13/8,115.86
  6. Step 6: Final answer
    x = 6,569.76

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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.