Home / 12,981.05-19,473.19-5,082.54

Finding the Fourth Proportional to 12,981.05, 19,473.19 and 5,082.54

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Solution

The fourth proportional to 12,981.05, 19,473.19 and 5,082.54 is: 7,624.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,981.05 : 19,473.19 = 5,082.54 : x
  2. Step 2: Convert to fraction form
    12,981.05/19,473.19 = 5,082.54/x
  3. Step 3: Cross multiply
    12,981.05x = 19,473.19 × 5,082.54
  4. Step 4: Simplify right side
    12,981.05x = 98,973,290.91
  5. Step 5: Solve for x
    x = 98,973,290.91/12,981.05
  6. Step 6: Final answer
    x = 7,624.44

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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.