Home / 8,632.64-12,947.06-3,086.37

Finding the Fourth Proportional to 8,632.64, 12,947.06 and 3,086.37

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Solution

The fourth proportional to 8,632.64, 12,947.06 and 3,086.37 is: 4,628.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,632.64 : 12,947.06 = 3,086.37 : x
  2. Step 2: Convert to fraction form
    8,632.64/12,947.06 = 3,086.37/x
  3. Step 3: Cross multiply
    8,632.64x = 12,947.06 × 3,086.37
  4. Step 4: Simplify right side
    8,632.64x = 39,959,425.29
  5. Step 5: Solve for x
    x = 39,959,425.29/8,632.64
  6. Step 6: Final answer
    x = 4,628.88

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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.