Home / 10,721.85-16,083.87-3,700.95

Finding the Fourth Proportional to 10,721.85, 16,083.87 and 3,700.95

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Solution

The fourth proportional to 10,721.85, 16,083.87 and 3,700.95 is: 5,551.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,721.85 : 16,083.87 = 3,700.95 : x
  2. Step 2: Convert to fraction form
    10,721.85/16,083.87 = 3,700.95/x
  3. Step 3: Cross multiply
    10,721.85x = 16,083.87 × 3,700.95
  4. Step 4: Simplify right side
    10,721.85x = 59,525,598.68
  5. Step 5: Solve for x
    x = 59,525,598.68/10,721.85
  6. Step 6: Final answer
    x = 5,551.80

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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.