Home / 12,178.53-18,272.84-4,388.13

Finding the Fourth Proportional to 12,178.53, 18,272.84 and 4,388.13

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Solution

The fourth proportional to 12,178.53, 18,272.84 and 4,388.13 is: 6,584.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,178.53 : 18,272.84 = 4,388.13 : x
  2. Step 2: Convert to fraction form
    12,178.53/18,272.84 = 4,388.13/x
  3. Step 3: Cross multiply
    12,178.53x = 18,272.84 × 4,388.13
  4. Step 4: Simplify right side
    12,178.53x = 80,183,575.45
  5. Step 5: Solve for x
    x = 80,183,575.45/12,178.53
  6. Step 6: Final answer
    x = 6,584.01

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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.