Home / 18,782.98-25,921.83-10,400.02

Finding the Fourth Proportional to 18,782.98, 25,921.83 and 10,400.02

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Solution

The fourth proportional to 18,782.98, 25,921.83 and 10,400.02 is: 14,352.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,782.98 : 25,921.83 = 10,400.02 : x
  2. Step 2: Convert to fraction form
    18,782.98/25,921.83 = 10,400.02/x
  3. Step 3: Cross multiply
    18,782.98x = 25,921.83 × 10,400.02
  4. Step 4: Simplify right side
    18,782.98x = 269,587,550.44
  5. Step 5: Solve for x
    x = 269,587,550.44/18,782.98
  6. Step 6: Final answer
    x = 14,352.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.