Home / 18,773.12-28,143.27-9,400.00

Finding the Fourth Proportional to 18,773.12, 28,143.27 and 9,400.00

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Solution

The fourth proportional to 18,773.12, 28,143.27 and 9,400.00 is: 14,091.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,773.12 : 28,143.27 = 9,400.00 : x
  2. Step 2: Convert to fraction form
    18,773.12/28,143.27 = 9,400.00/x
  3. Step 3: Cross multiply
    18,773.12x = 28,143.27 × 9,400.00
  4. Step 4: Simplify right side
    18,773.12x = 264,546,746.85
  5. Step 5: Solve for x
    x = 264,546,746.85/18,773.12
  6. Step 6: Final answer
    x = 14,091.79

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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.