Home / 12,122.39-18,180.03-4,725.08

Finding the Fourth Proportional to 12,122.39, 18,180.03 and 4,725.08

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Solution

The fourth proportional to 12,122.39, 18,180.03 and 4,725.08 is: 7,086.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,122.39 : 18,180.03 = 4,725.08 : x
  2. Step 2: Convert to fraction form
    12,122.39/18,180.03 = 4,725.08/x
  3. Step 3: Cross multiply
    12,122.39x = 18,180.03 × 4,725.08
  4. Step 4: Simplify right side
    12,122.39x = 85,902,072.53
  5. Step 5: Solve for x
    x = 85,902,072.53/12,122.39
  6. Step 6: Final answer
    x = 7,086.24

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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.