Home / 12,937.32-19,405.35-4,172.04

Finding the Fourth Proportional to 12,937.32, 19,405.35 and 4,172.04

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Solution

The fourth proportional to 12,937.32, 19,405.35 and 4,172.04 is: 6,257.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,937.32 : 19,405.35 = 4,172.04 : x
  2. Step 2: Convert to fraction form
    12,937.32/19,405.35 = 4,172.04/x
  3. Step 3: Cross multiply
    12,937.32x = 19,405.35 × 4,172.04
  4. Step 4: Simplify right side
    12,937.32x = 80,959,896.41
  5. Step 5: Solve for x
    x = 80,959,896.41/12,937.32
  6. Step 6: Final answer
    x = 6,257.86

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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.