Home / 8,119.86-11,205.49-4,764.66

Finding the Fourth Proportional to 8,119.86, 11,205.49 and 4,764.66

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Solution

The fourth proportional to 8,119.86, 11,205.49 and 4,764.66 is: 6,575.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,119.86 : 11,205.49 = 4,764.66 : x
  2. Step 2: Convert to fraction form
    8,119.86/11,205.49 = 4,764.66/x
  3. Step 3: Cross multiply
    8,119.86x = 11,205.49 × 4,764.66
  4. Step 4: Simplify right side
    8,119.86x = 53,390,349.98
  5. Step 5: Solve for x
    x = 53,390,349.98/8,119.86
  6. Step 6: Final answer
    x = 6,575.28

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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.