Home / 18,239.36-27,342.80-7,153.96

Finding the Fourth Proportional to 18,239.36, 27,342.80 and 7,153.96

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Solution

The fourth proportional to 18,239.36, 27,342.80 and 7,153.96 is: 10,724.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,239.36 : 27,342.80 = 7,153.96 : x
  2. Step 2: Convert to fraction form
    18,239.36/27,342.80 = 7,153.96/x
  3. Step 3: Cross multiply
    18,239.36x = 27,342.80 × 7,153.96
  4. Step 4: Simplify right side
    18,239.36x = 195,609,297.49
  5. Step 5: Solve for x
    x = 195,609,297.49/18,239.36
  6. Step 6: Final answer
    x = 10,724.57

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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.