Home / 18,123.44-27,189.22-6,436.64

Finding the Fourth Proportional to 18,123.44, 27,189.22 and 6,436.64

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Solution

The fourth proportional to 18,123.44, 27,189.22 and 6,436.64 is: 9,656.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,123.44 : 27,189.22 = 6,436.64 : x
  2. Step 2: Convert to fraction form
    18,123.44/27,189.22 = 6,436.64/x
  3. Step 3: Cross multiply
    18,123.44x = 27,189.22 × 6,436.64
  4. Step 4: Simplify right side
    18,123.44x = 175,007,221.02
  5. Step 5: Solve for x
    x = 175,007,221.02/18,123.44
  6. Step 6: Final answer
    x = 9,656.40

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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.