Home / 10,891.62-16,335.88-3,495.12

Finding the Fourth Proportional to 10,891.62, 16,335.88 and 3,495.12

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Solution

The fourth proportional to 10,891.62, 16,335.88 and 3,495.12 is: 5,242.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,891.62 : 16,335.88 = 3,495.12 : x
  2. Step 2: Convert to fraction form
    10,891.62/16,335.88 = 3,495.12/x
  3. Step 3: Cross multiply
    10,891.62x = 16,335.88 × 3,495.12
  4. Step 4: Simplify right side
    10,891.62x = 57,095,828.09
  5. Step 5: Solve for x
    x = 57,095,828.09/10,891.62
  6. Step 6: Final answer
    x = 5,242.18

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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.