Home / 18,365.72-27,543.66-7,975

Finding the Fourth Proportional to 18,365.72, 27,543.66 and 7,975

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Solution

The fourth proportional to 18,365.72, 27,543.66 and 7,975 is: 11,960.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,365.72 : 27,543.66 = 7,975 : x
  2. Step 2: Convert to fraction form
    18,365.72/27,543.66 = 7,975/x
  3. Step 3: Cross multiply
    18,365.72x = 27,543.66 × 7,975
  4. Step 4: Simplify right side
    18,365.72x = 219,660,688.50
  5. Step 5: Solve for x
    x = 219,660,688.50/18,365.72
  6. Step 6: Final answer
    x = 11,960.36

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1.5x scale

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.