Home / 13,383.24-20,069.02-7,141.85

Finding the Fourth Proportional to 13,383.24, 20,069.02 and 7,141.85

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Solution

The fourth proportional to 13,383.24, 20,069.02 and 7,141.85 is: 10,709.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,383.24 : 20,069.02 = 7,141.85 : x
  2. Step 2: Convert to fraction form
    13,383.24/20,069.02 = 7,141.85/x
  3. Step 3: Cross multiply
    13,383.24x = 20,069.02 × 7,141.85
  4. Step 4: Simplify right side
    13,383.24x = 143,329,930.49
  5. Step 5: Solve for x
    x = 143,329,930.49/13,383.24
  6. Step 6: Final answer
    x = 10,709.66

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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.