Home / 13,172.93-19,741.62-12,332.15

Finding the Fourth Proportional to 13,172.93, 19,741.62 and 12,332.15

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Solution

The fourth proportional to 13,172.93, 19,741.62 and 12,332.15 is: 18,481.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,172.93 : 19,741.62 = 12,332.15 : x
  2. Step 2: Convert to fraction form
    13,172.93/19,741.62 = 12,332.15/x
  3. Step 3: Cross multiply
    13,172.93x = 19,741.62 × 12,332.15
  4. Step 4: Simplify right side
    13,172.93x = 243,456,640.65
  5. Step 5: Solve for x
    x = 243,456,640.65/13,172.93
  6. Step 6: Final answer
    x = 18,481.59

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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.