Home / 10,754.78-16,132.87-2,857.17

Finding the Fourth Proportional to 10,754.78, 16,132.87 and 2,857.17

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Solution

The fourth proportional to 10,754.78, 16,132.87 and 2,857.17 is: 4,285.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,754.78 : 16,132.87 = 2,857.17 : x
  2. Step 2: Convert to fraction form
    10,754.78/16,132.87 = 2,857.17/x
  3. Step 3: Cross multiply
    10,754.78x = 16,132.87 × 2,857.17
  4. Step 4: Simplify right side
    10,754.78x = 46,094,416.25
  5. Step 5: Solve for x
    x = 46,094,416.25/10,754.78
  6. Step 6: Final answer
    x = 4,285.95

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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.