Home / 18,380.84-25,365.46-9,997.36

Finding the Fourth Proportional to 18,380.84, 25,365.46 and 9,997.36

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Solution

The fourth proportional to 18,380.84, 25,365.46 and 9,997.36 is: 13,796.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,380.84 : 25,365.46 = 9,997.36 : x
  2. Step 2: Convert to fraction form
    18,380.84/25,365.46 = 9,997.36/x
  3. Step 3: Cross multiply
    18,380.84x = 25,365.46 × 9,997.36
  4. Step 4: Simplify right side
    18,380.84x = 253,587,635.19
  5. Step 5: Solve for x
    x = 253,587,635.19/18,380.84
  6. Step 6: Final answer
    x = 13,796.30

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1.5x scale

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.