Home / 8,912.71-12,286.86-6,076.45

Finding the Fourth Proportional to 8,912.71, 12,286.86 and 6,076.45

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Solution

The fourth proportional to 8,912.71, 12,286.86 and 6,076.45 is: 8,376.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,912.71 : 12,286.86 = 6,076.45 : x
  2. Step 2: Convert to fraction form
    8,912.71/12,286.86 = 6,076.45/x
  3. Step 3: Cross multiply
    8,912.71x = 12,286.86 × 6,076.45
  4. Step 4: Simplify right side
    8,912.71x = 74,660,398.63
  5. Step 5: Solve for x
    x = 74,660,398.63/8,912.71
  6. Step 6: Final answer
    x = 8,376.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.