Home / 12,120.24-18,183-10,895.52

Finding the Fourth Proportional to 12,120.24, 18,183 and 10,895.52

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Solution

The fourth proportional to 12,120.24, 18,183 and 10,895.52 is: 16,345.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,120.24 : 18,183 = 10,895.52 : x
  2. Step 2: Convert to fraction form
    12,120.24/18,183 = 10,895.52/x
  3. Step 3: Cross multiply
    12,120.24x = 18,183 × 10,895.52
  4. Step 4: Simplify right side
    12,120.24x = 198,113,240.16
  5. Step 5: Solve for x
    x = 198,113,240.16/12,120.24
  6. Step 6: Final answer
    x = 16,345.65

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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.