Home / 12,115.66-18,162.54-4,322.66

Finding the Fourth Proportional to 12,115.66, 18,162.54 and 4,322.66

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Solution

The fourth proportional to 12,115.66, 18,162.54 and 4,322.66 is: 6,480.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,115.66 : 18,162.54 = 4,322.66 : x
  2. Step 2: Convert to fraction form
    12,115.66/18,162.54 = 4,322.66/x
  3. Step 3: Cross multiply
    12,115.66x = 18,162.54 × 4,322.66
  4. Step 4: Simplify right side
    12,115.66x = 78,510,485.16
  5. Step 5: Solve for x
    x = 78,510,485.16/12,115.66
  6. Step 6: Final answer
    x = 6,480.08

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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.