Home / 13,320.92-19,981.39-3,459.37

Finding the Fourth Proportional to 13,320.92, 19,981.39 and 3,459.37

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Solution

The fourth proportional to 13,320.92, 19,981.39 and 3,459.37 is: 5,189.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,320.92 : 19,981.39 = 3,459.37 : x
  2. Step 2: Convert to fraction form
    13,320.92/19,981.39 = 3,459.37/x
  3. Step 3: Cross multiply
    13,320.92x = 19,981.39 × 3,459.37
  4. Step 4: Simplify right side
    13,320.92x = 69,123,021.12
  5. Step 5: Solve for x
    x = 69,123,021.12/13,320.92
  6. Step 6: Final answer
    x = 5,189.06

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Similar ratio
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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.