Home / 13,400.88-18,474.09-9,622.84

Finding the Fourth Proportional to 13,400.88, 18,474.09 and 9,622.84

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Solution

The fourth proportional to 13,400.88, 18,474.09 and 9,622.84 is: 13,265.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,400.88 : 18,474.09 = 9,622.84 : x
  2. Step 2: Convert to fraction form
    13,400.88/18,474.09 = 9,622.84/x
  3. Step 3: Cross multiply
    13,400.88x = 18,474.09 × 9,622.84
  4. Step 4: Simplify right side
    13,400.88x = 177,773,212.22
  5. Step 5: Solve for x
    x = 177,773,212.22/13,400.88
  6. Step 6: Final answer
    x = 13,265.79

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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.