Home / 18,790.13-28,146.91-8,899.43

Finding the Fourth Proportional to 18,790.13, 28,146.91 and 8,899.43

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Solution

The fourth proportional to 18,790.13, 28,146.91 and 8,899.43 is: 13,331.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,790.13 : 28,146.91 = 8,899.43 : x
  2. Step 2: Convert to fraction form
    18,790.13/28,146.91 = 8,899.43/x
  3. Step 3: Cross multiply
    18,790.13x = 28,146.91 × 8,899.43
  4. Step 4: Simplify right side
    18,790.13x = 250,491,270.03
  5. Step 5: Solve for x
    x = 250,491,270.03/18,790.13
  6. Step 6: Final answer
    x = 13,331.00

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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.