Home / 18,910.09-28,333.86-11,492.02

Finding the Fourth Proportional to 18,910.09, 28,333.86 and 11,492.02

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Solution

The fourth proportional to 18,910.09, 28,333.86 and 11,492.02 is: 17,219.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,910.09 : 28,333.86 = 11,492.02 : x
  2. Step 2: Convert to fraction form
    18,910.09/28,333.86 = 11,492.02/x
  3. Step 3: Cross multiply
    18,910.09x = 28,333.86 × 11,492.02
  4. Step 4: Simplify right side
    18,910.09x = 325,613,285.80
  5. Step 5: Solve for x
    x = 325,613,285.80/18,910.09
  6. Step 6: Final answer
    x = 17,219.02

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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.