Home / 10,872.30-16,308.45-6,738.60

Finding the Fourth Proportional to 10,872.30, 16,308.45 and 6,738.60

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Solution

The fourth proportional to 10,872.30, 16,308.45 and 6,738.60 is: 10,107.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,872.30 : 16,308.45 = 6,738.60 : x
  2. Step 2: Convert to fraction form
    10,872.30/16,308.45 = 6,738.60/x
  3. Step 3: Cross multiply
    10,872.30x = 16,308.45 × 6,738.60
  4. Step 4: Simplify right side
    10,872.30x = 109,896,121.17
  5. Step 5: Solve for x
    x = 109,896,121.17/10,872.30
  6. Step 6: Final answer
    x = 10,107.90

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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.