Home / 12,286.32-18,432.09-3,966.81

Finding the Fourth Proportional to 12,286.32, 18,432.09 and 3,966.81

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Solution

The fourth proportional to 12,286.32, 18,432.09 and 3,966.81 is: 5,951.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,286.32 : 18,432.09 = 3,966.81 : x
  2. Step 2: Convert to fraction form
    12,286.32/18,432.09 = 3,966.81/x
  3. Step 3: Cross multiply
    12,286.32x = 18,432.09 × 3,966.81
  4. Step 4: Simplify right side
    12,286.32x = 73,116,598.93
  5. Step 5: Solve for x
    x = 73,116,598.93/12,286.32
  6. Step 6: Final answer
    x = 5,951.06

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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.