Home / 12,664.32-18,995.94-3,898.86

Finding the Fourth Proportional to 12,664.32, 18,995.94 and 3,898.86

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Solution

The fourth proportional to 12,664.32, 18,995.94 and 3,898.86 is: 5,848.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,664.32 : 18,995.94 = 3,898.86 : x
  2. Step 2: Convert to fraction form
    12,664.32/18,995.94 = 3,898.86/x
  3. Step 3: Cross multiply
    12,664.32x = 18,995.94 × 3,898.86
  4. Step 4: Simplify right side
    12,664.32x = 74,062,510.63
  5. Step 5: Solve for x
    x = 74,062,510.63/12,664.32
  6. Step 6: Final answer
    x = 5,848.12

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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.