Home / 11,812.68-17,722.08-3,492.36

Finding the Fourth Proportional to 11,812.68, 17,722.08 and 3,492.36

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Solution

The fourth proportional to 11,812.68, 17,722.08 and 3,492.36 is: 5,239.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,812.68 : 17,722.08 = 3,492.36 : x
  2. Step 2: Convert to fraction form
    11,812.68/17,722.08 = 3,492.36/x
  3. Step 3: Cross multiply
    11,812.68x = 17,722.08 × 3,492.36
  4. Step 4: Simplify right side
    11,812.68x = 61,891,883.31
  5. Step 5: Solve for x
    x = 61,891,883.31/11,812.68
  6. Step 6: Final answer
    x = 5,239.44

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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.