Home / 12,813.92-19,218.70-3,577.76

Finding the Fourth Proportional to 12,813.92, 19,218.70 and 3,577.76

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Solution

The fourth proportional to 12,813.92, 19,218.70 and 3,577.76 is: 5,366.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,813.92 : 19,218.70 = 3,577.76 : x
  2. Step 2: Convert to fraction form
    12,813.92/19,218.70 = 3,577.76/x
  3. Step 3: Cross multiply
    12,813.92x = 19,218.70 × 3,577.76
  4. Step 4: Simplify right side
    12,813.92x = 68,759,896.11
  5. Step 5: Solve for x
    x = 68,759,896.11/12,813.92
  6. Step 6: Final answer
    x = 5,366.03

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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.