Home / 13,203.82-18,221.26-7,235.50

Finding the Fourth Proportional to 13,203.82, 18,221.26 and 7,235.50

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Solution

The fourth proportional to 13,203.82, 18,221.26 and 7,235.50 is: 9,984.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,203.82 : 18,221.26 = 7,235.50 : x
  2. Step 2: Convert to fraction form
    13,203.82/18,221.26 = 7,235.50/x
  3. Step 3: Cross multiply
    13,203.82x = 18,221.26 × 7,235.50
  4. Step 4: Simplify right side
    13,203.82x = 131,839,926.73
  5. Step 5: Solve for x
    x = 131,839,926.73/13,203.82
  6. Step 6: Final answer
    x = 9,984.98

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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.