Home / 12,664.44-18,996.20-3,899.13

Finding the Fourth Proportional to 12,664.44, 18,996.20 and 3,899.13

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Solution

The fourth proportional to 12,664.44, 18,996.20 and 3,899.13 is: 5,848.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,664.44 : 18,996.20 = 3,899.13 : x
  2. Step 2: Convert to fraction form
    12,664.44/18,996.20 = 3,899.13/x
  3. Step 3: Cross multiply
    12,664.44x = 18,996.20 × 3,899.13
  4. Step 4: Simplify right side
    12,664.44x = 74,068,653.31
  5. Step 5: Solve for x
    x = 74,068,653.31/12,664.44
  6. Step 6: Final answer
    x = 5,848.55

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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.