Home / 10,721.98-16,086.28-4,803.85

Finding the Fourth Proportional to 10,721.98, 16,086.28 and 4,803.85

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Solution

The fourth proportional to 10,721.98, 16,086.28 and 4,803.85 is: 7,207.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,721.98 : 16,086.28 = 4,803.85 : x
  2. Step 2: Convert to fraction form
    10,721.98/16,086.28 = 4,803.85/x
  3. Step 3: Cross multiply
    10,721.98x = 16,086.28 × 4,803.85
  4. Step 4: Simplify right side
    10,721.98x = 77,276,076.18
  5. Step 5: Solve for x
    x = 77,276,076.18/10,721.98
  6. Step 6: Final answer
    x = 7,207.26

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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.