Home / 11,147.95-16,721.70-3,356.77

Finding the Fourth Proportional to 11,147.95, 16,721.70 and 3,356.77

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Solution

The fourth proportional to 11,147.95, 16,721.70 and 3,356.77 is: 5,035.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,147.95 : 16,721.70 = 3,356.77 : x
  2. Step 2: Convert to fraction form
    11,147.95/16,721.70 = 3,356.77/x
  3. Step 3: Cross multiply
    11,147.95x = 16,721.70 × 3,356.77
  4. Step 4: Simplify right side
    11,147.95x = 56,130,900.91
  5. Step 5: Solve for x
    x = 56,130,900.91/11,147.95
  6. Step 6: Final answer
    x = 5,035.09

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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.