Home / 18,001.86-27,016.56-8,148.06

Finding the Fourth Proportional to 18,001.86, 27,016.56 and 8,148.06

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Solution

The fourth proportional to 18,001.86, 27,016.56 and 8,148.06 is: 12,228.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,001.86 : 27,016.56 = 8,148.06 : x
  2. Step 2: Convert to fraction form
    18,001.86/27,016.56 = 8,148.06/x
  3. Step 3: Cross multiply
    18,001.86x = 27,016.56 × 8,148.06
  4. Step 4: Simplify right side
    18,001.86x = 220,132,551.87
  5. Step 5: Solve for x
    x = 220,132,551.87/18,001.86
  6. Step 6: Final answer
    x = 12,228.32

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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.