Home / 18,501.03-27,693.18-13,219.02

Finding the Fourth Proportional to 18,501.03, 27,693.18 and 13,219.02

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Solution

The fourth proportional to 18,501.03, 27,693.18 and 13,219.02 is: 19,786.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,501.03 : 27,693.18 = 13,219.02 : x
  2. Step 2: Convert to fraction form
    18,501.03/27,693.18 = 13,219.02/x
  3. Step 3: Cross multiply
    18,501.03x = 27,693.18 × 13,219.02
  4. Step 4: Simplify right side
    18,501.03x = 366,076,700.28
  5. Step 5: Solve for x
    x = 366,076,700.28/18,501.03
  6. Step 6: Final answer
    x = 19,786.83

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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.