Home / 13,184.28-19,776.69-5,388.30

Finding the Fourth Proportional to 13,184.28, 19,776.69 and 5,388.30

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Solution

The fourth proportional to 13,184.28, 19,776.69 and 5,388.30 is: 8,082.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,184.28 : 19,776.69 = 5,388.30 : x
  2. Step 2: Convert to fraction form
    13,184.28/19,776.69 = 5,388.30/x
  3. Step 3: Cross multiply
    13,184.28x = 19,776.69 × 5,388.30
  4. Step 4: Simplify right side
    13,184.28x = 106,562,738.73
  5. Step 5: Solve for x
    x = 106,562,738.73/13,184.28
  6. Step 6: Final answer
    x = 8,082.56

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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.