Home / 13,581.74-20,392.06-10,082.54

Finding the Fourth Proportional to 13,581.74, 20,392.06 and 10,082.54

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Solution

The fourth proportional to 13,581.74, 20,392.06 and 10,082.54 is: 15,138.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,581.74 : 20,392.06 = 10,082.54 : x
  2. Step 2: Convert to fraction form
    13,581.74/20,392.06 = 10,082.54/x
  3. Step 3: Cross multiply
    13,581.74x = 20,392.06 × 10,082.54
  4. Step 4: Simplify right side
    13,581.74x = 205,603,760.63
  5. Step 5: Solve for x
    x = 205,603,760.63/13,581.74
  6. Step 6: Final answer
    x = 15,138.25

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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.