Home / 13,082.88-19,623.80-3,221.68

Finding the Fourth Proportional to 13,082.88, 19,623.80 and 3,221.68

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Solution

The fourth proportional to 13,082.88, 19,623.80 and 3,221.68 is: 4,832.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,082.88 : 19,623.80 = 3,221.68 : x
  2. Step 2: Convert to fraction form
    13,082.88/19,623.80 = 3,221.68/x
  3. Step 3: Cross multiply
    13,082.88x = 19,623.80 × 3,221.68
  4. Step 4: Simplify right side
    13,082.88x = 63,221,603.98
  5. Step 5: Solve for x
    x = 63,221,603.98/13,082.88
  6. Step 6: Final answer
    x = 4,832.39

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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.