Home / 8,519.86-12,774.75-3,319.66

Finding the Fourth Proportional to 8,519.86, 12,774.75 and 3,319.66

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Solution

The fourth proportional to 8,519.86, 12,774.75 and 3,319.66 is: 4,977.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,519.86 : 12,774.75 = 3,319.66 : x
  2. Step 2: Convert to fraction form
    8,519.86/12,774.75 = 3,319.66/x
  3. Step 3: Cross multiply
    8,519.86x = 12,774.75 × 3,319.66
  4. Step 4: Simplify right side
    8,519.86x = 42,407,826.59
  5. Step 5: Solve for x
    x = 42,407,826.59/8,519.86
  6. Step 6: Final answer
    x = 4,977.53

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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.