Home / 10,872.62-16,312.80-6,707.78

Finding the Fourth Proportional to 10,872.62, 16,312.80 and 6,707.78

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Solution

The fourth proportional to 10,872.62, 16,312.80 and 6,707.78 is: 10,064.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,872.62 : 16,312.80 = 6,707.78 : x
  2. Step 2: Convert to fraction form
    10,872.62/16,312.80 = 6,707.78/x
  3. Step 3: Cross multiply
    10,872.62x = 16,312.80 × 6,707.78
  4. Step 4: Simplify right side
    10,872.62x = 109,422,673.58
  5. Step 5: Solve for x
    x = 109,422,673.58/10,872.62
  6. Step 6: Final answer
    x = 10,064.06

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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.