Home / 18,647.04-27,975.42-8,256.36

Finding the Fourth Proportional to 18,647.04, 27,975.42 and 8,256.36

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Solution

The fourth proportional to 18,647.04, 27,975.42 and 8,256.36 is: 12,386.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,647.04 : 27,975.42 = 8,256.36 : x
  2. Step 2: Convert to fraction form
    18,647.04/27,975.42 = 8,256.36/x
  3. Step 3: Cross multiply
    18,647.04x = 27,975.42 × 8,256.36
  4. Step 4: Simplify right side
    18,647.04x = 230,975,138.67
  5. Step 5: Solve for x
    x = 230,975,138.67/18,647.04
  6. Step 6: Final answer
    x = 12,386.69

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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.