Home / 12,169.91-18,247.01-4,775.12

Finding the Fourth Proportional to 12,169.91, 18,247.01 and 4,775.12

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Solution

The fourth proportional to 12,169.91, 18,247.01 and 4,775.12 is: 7,159.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,169.91 : 18,247.01 = 4,775.12 : x
  2. Step 2: Convert to fraction form
    12,169.91/18,247.01 = 4,775.12/x
  3. Step 3: Cross multiply
    12,169.91x = 18,247.01 × 4,775.12
  4. Step 4: Simplify right side
    12,169.91x = 87,131,589.06
  5. Step 5: Solve for x
    x = 87,131,589.06/12,169.91
  6. Step 6: Final answer
    x = 7,159.59

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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.