Home / 18,663.48-27,975.38-6,971.64

Finding the Fourth Proportional to 18,663.48, 27,975.38 and 6,971.64

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Solution

The fourth proportional to 18,663.48, 27,975.38 and 6,971.64 is: 10,450.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,663.48 : 27,975.38 = 6,971.64 : x
  2. Step 2: Convert to fraction form
    18,663.48/27,975.38 = 6,971.64/x
  3. Step 3: Cross multiply
    18,663.48x = 27,975.38 × 6,971.64
  4. Step 4: Simplify right side
    18,663.48x = 195,034,278.22
  5. Step 5: Solve for x
    x = 195,034,278.22/18,663.48
  6. Step 6: Final answer
    x = 10,450.05

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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.