Home / 10,785.95-16,179.73-3,390.38

Finding the Fourth Proportional to 10,785.95, 16,179.73 and 3,390.38

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Solution

The fourth proportional to 10,785.95, 16,179.73 and 3,390.38 is: 5,085.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,785.95 : 16,179.73 = 3,390.38 : x
  2. Step 2: Convert to fraction form
    10,785.95/16,179.73 = 3,390.38/x
  3. Step 3: Cross multiply
    10,785.95x = 16,179.73 × 3,390.38
  4. Step 4: Simplify right side
    10,785.95x = 54,855,433.00
  5. Step 5: Solve for x
    x = 54,855,433.00/10,785.95
  6. Step 6: Final answer
    x = 5,085.82

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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.