Home / 10,722-16,076.08-4,480.36

Finding the Fourth Proportional to 10,722, 16,076.08 and 4,480.36

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Solution

The fourth proportional to 10,722, 16,076.08 and 4,480.36 is: 6,717.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,722 : 16,076.08 = 4,480.36 : x
  2. Step 2: Convert to fraction form
    10,722/16,076.08 = 4,480.36/x
  3. Step 3: Cross multiply
    10,722x = 16,076.08 × 4,480.36
  4. Step 4: Simplify right side
    10,722x = 72,026,625.79
  5. Step 5: Solve for x
    x = 72,026,625.79/10,722
  6. Step 6: Final answer
    x = 6,717.65

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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.