Home / 12,811.13-19,219.94-3,577.13

Finding the Fourth Proportional to 12,811.13, 19,219.94 and 3,577.13

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Solution

The fourth proportional to 12,811.13, 19,219.94 and 3,577.13 is: 5,366.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,811.13 : 19,219.94 = 3,577.13 : x
  2. Step 2: Convert to fraction form
    12,811.13/19,219.94 = 3,577.13/x
  3. Step 3: Cross multiply
    12,811.13x = 19,219.94 × 3,577.13
  4. Step 4: Simplify right side
    12,811.13x = 68,752,109.99
  5. Step 5: Solve for x
    x = 68,752,109.99/12,811.13
  6. Step 6: Final answer
    x = 5,366.59

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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.