Home / 11,448.30-17,172.45-3,657.72

Finding the Fourth Proportional to 11,448.30, 17,172.45 and 3,657.72

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Solution

The fourth proportional to 11,448.30, 17,172.45 and 3,657.72 is: 5,486.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,448.30 : 17,172.45 = 3,657.72 : x
  2. Step 2: Convert to fraction form
    11,448.30/17,172.45 = 3,657.72/x
  3. Step 3: Cross multiply
    11,448.30x = 17,172.45 × 3,657.72
  4. Step 4: Simplify right side
    11,448.30x = 62,811,995.53
  5. Step 5: Solve for x
    x = 62,811,995.53/11,448.30
  6. Step 6: Final answer
    x = 5,486.58

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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.