Home / 12,055.78-18,084.88-4,157.24

Finding the Fourth Proportional to 12,055.78, 18,084.88 and 4,157.24

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Solution

The fourth proportional to 12,055.78, 18,084.88 and 4,157.24 is: 6,236.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,055.78 : 18,084.88 = 4,157.24 : x
  2. Step 2: Convert to fraction form
    12,055.78/18,084.88 = 4,157.24/x
  3. Step 3: Cross multiply
    12,055.78x = 18,084.88 × 4,157.24
  4. Step 4: Simplify right side
    12,055.78x = 75,183,186.53
  5. Step 5: Solve for x
    x = 75,183,186.53/12,055.78
  6. Step 6: Final answer
    x = 6,236.28

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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.