Home / 12,162.41-18,236.30-4,758.05

Finding the Fourth Proportional to 12,162.41, 18,236.30 and 4,758.05

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Solution

The fourth proportional to 12,162.41, 18,236.30 and 4,758.05 is: 7,134.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,162.41 : 18,236.30 = 4,758.05 : x
  2. Step 2: Convert to fraction form
    12,162.41/18,236.30 = 4,758.05/x
  3. Step 3: Cross multiply
    12,162.41x = 18,236.30 × 4,758.05
  4. Step 4: Simplify right side
    12,162.41x = 86,769,112.24
  5. Step 5: Solve for x
    x = 86,769,112.24/12,162.41
  6. Step 6: Final answer
    x = 7,134.21

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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.