Home / 12,963.28-19,446.84-3,728.08

Finding the Fourth Proportional to 12,963.28, 19,446.84 and 3,728.08

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Solution

The fourth proportional to 12,963.28, 19,446.84 and 3,728.08 is: 5,592.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,963.28 : 19,446.84 = 3,728.08 : x
  2. Step 2: Convert to fraction form
    12,963.28/19,446.84 = 3,728.08/x
  3. Step 3: Cross multiply
    12,963.28x = 19,446.84 × 3,728.08
  4. Step 4: Simplify right side
    12,963.28x = 72,499,375.27
  5. Step 5: Solve for x
    x = 72,499,375.27/12,963.28
  6. Step 6: Final answer
    x = 5,592.67

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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.