Home / 18,203.09-27,239.67-13,211.24

Finding the Fourth Proportional to 18,203.09, 27,239.67 and 13,211.24

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Solution

The fourth proportional to 18,203.09, 27,239.67 and 13,211.24 is: 19,769.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,203.09 : 27,239.67 = 13,211.24 : x
  2. Step 2: Convert to fraction form
    18,203.09/27,239.67 = 13,211.24/x
  3. Step 3: Cross multiply
    18,203.09x = 27,239.67 × 13,211.24
  4. Step 4: Simplify right side
    18,203.09x = 359,869,681.69
  5. Step 5: Solve for x
    x = 359,869,681.69/18,203.09
  6. Step 6: Final answer
    x = 19,769.71

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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.