Home / 11,689.32-17,535.96-5,115.36

Finding the Fourth Proportional to 11,689.32, 17,535.96 and 5,115.36

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Solution

The fourth proportional to 11,689.32, 17,535.96 and 5,115.36 is: 7,673.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,689.32 : 17,535.96 = 5,115.36 : x
  2. Step 2: Convert to fraction form
    11,689.32/17,535.96 = 5,115.36/x
  3. Step 3: Cross multiply
    11,689.32x = 17,535.96 × 5,115.36
  4. Step 4: Simplify right side
    11,689.32x = 89,702,748.35
  5. Step 5: Solve for x
    x = 89,702,748.35/11,689.32
  6. Step 6: Final answer
    x = 7,673.91

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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.