Home / 12,011.49-18,015.62-6,168.15

Finding the Fourth Proportional to 12,011.49, 18,015.62 and 6,168.15

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Solution

The fourth proportional to 12,011.49, 18,015.62 and 6,168.15 is: 9,251.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,011.49 : 18,015.62 = 6,168.15 : x
  2. Step 2: Convert to fraction form
    12,011.49/18,015.62 = 6,168.15/x
  3. Step 3: Cross multiply
    12,011.49x = 18,015.62 × 6,168.15
  4. Step 4: Simplify right side
    12,011.49x = 111,123,015.66
  5. Step 5: Solve for x
    x = 111,123,015.66/12,011.49
  6. Step 6: Final answer
    x = 9,251.39

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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.