Home / 12,155.66-18,222.54-4,362.65

Finding the Fourth Proportional to 12,155.66, 18,222.54 and 4,362.65

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Solution

The fourth proportional to 12,155.66, 18,222.54 and 4,362.65 is: 6,540.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,155.66 : 18,222.54 = 4,362.65 : x
  2. Step 2: Convert to fraction form
    12,155.66/18,222.54 = 4,362.65/x
  3. Step 3: Cross multiply
    12,155.66x = 18,222.54 × 4,362.65
  4. Step 4: Simplify right side
    12,155.66x = 79,498,473.02
  5. Step 5: Solve for x
    x = 79,498,473.02/12,155.66
  6. Step 6: Final answer
    x = 6,540.04

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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.