Home / 11,434.86-17,145.09-6,429.30

Finding the Fourth Proportional to 11,434.86, 17,145.09 and 6,429.30

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Solution

The fourth proportional to 11,434.86, 17,145.09 and 6,429.30 is: 9,639.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,434.86 : 17,145.09 = 6,429.30 : x
  2. Step 2: Convert to fraction form
    11,434.86/17,145.09 = 6,429.30/x
  3. Step 3: Cross multiply
    11,434.86x = 17,145.09 × 6,429.30
  4. Step 4: Simplify right side
    11,434.86x = 110,230,927.14
  5. Step 5: Solve for x
    x = 110,230,927.14/11,434.86
  6. Step 6: Final answer
    x = 9,639.90

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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.