Home / 11,784.87-17,672.68-4,385.28

Finding the Fourth Proportional to 11,784.87, 17,672.68 and 4,385.28

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Solution

The fourth proportional to 11,784.87, 17,672.68 and 4,385.28 is: 6,576.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,784.87 : 17,672.68 = 4,385.28 : x
  2. Step 2: Convert to fraction form
    11,784.87/17,672.68 = 4,385.28/x
  3. Step 3: Cross multiply
    11,784.87x = 17,672.68 × 4,385.28
  4. Step 4: Simplify right side
    11,784.87x = 77,499,628.22
  5. Step 5: Solve for x
    x = 77,499,628.22/11,784.87
  6. Step 6: Final answer
    x = 6,576.20

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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.