Home / 12,213.29-18,319.64-3,448.08

Finding the Fourth Proportional to 12,213.29, 18,319.64 and 3,448.08

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Solution

The fourth proportional to 12,213.29, 18,319.64 and 3,448.08 is: 5,172.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,213.29 : 18,319.64 = 3,448.08 : x
  2. Step 2: Convert to fraction form
    12,213.29/18,319.64 = 3,448.08/x
  3. Step 3: Cross multiply
    12,213.29x = 18,319.64 × 3,448.08
  4. Step 4: Simplify right side
    12,213.29x = 63,167,567.05
  5. Step 5: Solve for x
    x = 63,167,567.05/12,213.29
  6. Step 6: Final answer
    x = 5,172.03

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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.