Home / 12,144.20-16,760.58-6,840.04

Finding the Fourth Proportional to 12,144.20, 16,760.58 and 6,840.04

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Solution

The fourth proportional to 12,144.20, 16,760.58 and 6,840.04 is: 9,440.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,144.20 : 16,760.58 = 6,840.04 : x
  2. Step 2: Convert to fraction form
    12,144.20/16,760.58 = 6,840.04/x
  3. Step 3: Cross multiply
    12,144.20x = 16,760.58 × 6,840.04
  4. Step 4: Simplify right side
    12,144.20x = 114,643,037.62
  5. Step 5: Solve for x
    x = 114,643,037.62/12,144.20
  6. Step 6: Final answer
    x = 9,440.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.