Home / 11,677.20-17,509.72-4,281.36

Finding the Fourth Proportional to 11,677.20, 17,509.72 and 4,281.36

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Solution

The fourth proportional to 11,677.20, 17,509.72 and 4,281.36 is: 6,419.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,677.20 : 17,509.72 = 4,281.36 : x
  2. Step 2: Convert to fraction form
    11,677.20/17,509.72 = 4,281.36/x
  3. Step 3: Cross multiply
    11,677.20x = 17,509.72 × 4,281.36
  4. Step 4: Simplify right side
    11,677.20x = 74,965,414.82
  5. Step 5: Solve for x
    x = 74,965,414.82/11,677.20
  6. Step 6: Final answer
    x = 6,419.81

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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.