Home / 13,320.96-19,937.16-8,936.88

Finding the Fourth Proportional to 13,320.96, 19,937.16 and 8,936.88

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Solution

The fourth proportional to 13,320.96, 19,937.16 and 8,936.88 is: 13,375.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,320.96 : 19,937.16 = 8,936.88 : x
  2. Step 2: Convert to fraction form
    13,320.96/19,937.16 = 8,936.88/x
  3. Step 3: Cross multiply
    13,320.96x = 19,937.16 × 8,936.88
  4. Step 4: Simplify right side
    13,320.96x = 178,176,006.46
  5. Step 5: Solve for x
    x = 178,176,006.46/13,320.96
  6. Step 6: Final answer
    x = 13,375.61

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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.