Home / 10,785.61-16,179.32-3,389.91

Finding the Fourth Proportional to 10,785.61, 16,179.32 and 3,389.91

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Solution

The fourth proportional to 10,785.61, 16,179.32 and 3,389.91 is: 5,085.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,785.61 : 16,179.32 = 3,389.91 : x
  2. Step 2: Convert to fraction form
    10,785.61/16,179.32 = 3,389.91/x
  3. Step 3: Cross multiply
    10,785.61x = 16,179.32 × 3,389.91
  4. Step 4: Simplify right side
    10,785.61x = 54,846,438.66
  5. Step 5: Solve for x
    x = 54,846,438.66/10,785.61
  6. Step 6: Final answer
    x = 5,085.15

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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.