Home / 18,837.09-28,190.23-11,718.41

Finding the Fourth Proportional to 18,837.09, 28,190.23 and 11,718.41

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Solution

The fourth proportional to 18,837.09, 28,190.23 and 11,718.41 is: 17,536.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,837.09 : 28,190.23 = 11,718.41 : x
  2. Step 2: Convert to fraction form
    18,837.09/28,190.23 = 11,718.41/x
  3. Step 3: Cross multiply
    18,837.09x = 28,190.23 × 11,718.41
  4. Step 4: Simplify right side
    18,837.09x = 330,344,502.89
  5. Step 5: Solve for x
    x = 330,344,502.89/18,837.09
  6. Step 6: Final answer
    x = 17,536.92

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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.