Home / 18,380.52-25,364.88-9,997.02

Finding the Fourth Proportional to 18,380.52, 25,364.88 and 9,997.02

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Solution

The fourth proportional to 18,380.52, 25,364.88 and 9,997.02 is: 13,795.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,380.52 : 25,364.88 = 9,997.02 : x
  2. Step 2: Convert to fraction form
    18,380.52/25,364.88 = 9,997.02/x
  3. Step 3: Cross multiply
    18,380.52x = 25,364.88 × 9,997.02
  4. Step 4: Simplify right side
    18,380.52x = 253,573,212.66
  5. Step 5: Solve for x
    x = 253,573,212.66/18,380.52
  6. Step 6: Final answer
    x = 13,795.76

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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.