Home / 12,187.21-18,286.62-8,444.76

Finding the Fourth Proportional to 12,187.21, 18,286.62 and 8,444.76

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Solution

The fourth proportional to 12,187.21, 18,286.62 and 8,444.76 is: 12,671.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,187.21 : 18,286.62 = 8,444.76 : x
  2. Step 2: Convert to fraction form
    12,187.21/18,286.62 = 8,444.76/x
  3. Step 3: Cross multiply
    12,187.21x = 18,286.62 × 8,444.76
  4. Step 4: Simplify right side
    12,187.21x = 154,426,062.59
  5. Step 5: Solve for x
    x = 154,426,062.59/12,187.21
  6. Step 6: Final answer
    x = 12,671.16

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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.