Home / 10,782.32-16,175.30-4,939.38

Finding the Fourth Proportional to 10,782.32, 16,175.30 and 4,939.38

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Solution

The fourth proportional to 10,782.32, 16,175.30 and 4,939.38 is: 7,409.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,782.32 : 16,175.30 = 4,939.38 : x
  2. Step 2: Convert to fraction form
    10,782.32/16,175.30 = 4,939.38/x
  3. Step 3: Cross multiply
    10,782.32x = 16,175.30 × 4,939.38
  4. Step 4: Simplify right side
    10,782.32x = 79,895,928.62
  5. Step 5: Solve for x
    x = 79,895,928.62/10,782.32
  6. Step 6: Final answer
    x = 7,409.90

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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.