Home / 12,276.46-18,408.88-6,728.23

Finding the Fourth Proportional to 12,276.46, 18,408.88 and 6,728.23

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Solution

The fourth proportional to 12,276.46, 18,408.88 and 6,728.23 is: 10,089.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,276.46 : 18,408.88 = 6,728.23 : x
  2. Step 2: Convert to fraction form
    12,276.46/18,408.88 = 6,728.23/x
  3. Step 3: Cross multiply
    12,276.46x = 18,408.88 × 6,728.23
  4. Step 4: Simplify right side
    12,276.46x = 123,859,178.68
  5. Step 5: Solve for x
    x = 123,859,178.68/12,276.46
  6. Step 6: Final answer
    x = 10,089.16

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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.