Home / 8,519.24-12,777.78-3,328.76

Finding the Fourth Proportional to 8,519.24, 12,777.78 and 3,328.76

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Solution

The fourth proportional to 8,519.24, 12,777.78 and 3,328.76 is: 4,992.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,519.24 : 12,777.78 = 3,328.76 : x
  2. Step 2: Convert to fraction form
    8,519.24/12,777.78 = 3,328.76/x
  3. Step 3: Cross multiply
    8,519.24x = 12,777.78 × 3,328.76
  4. Step 4: Simplify right side
    8,519.24x = 42,534,162.95
  5. Step 5: Solve for x
    x = 42,534,162.95/8,519.24
  6. Step 6: Final answer
    x = 4,992.72

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1.5x scale

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.