Home / 13,203.84-18,220.64-7,234.37

Finding the Fourth Proportional to 13,203.84, 18,220.64 and 7,234.37

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Solution

The fourth proportional to 13,203.84, 18,220.64 and 7,234.37 is: 9,983.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,203.84 : 18,220.64 = 7,234.37 : x
  2. Step 2: Convert to fraction form
    13,203.84/18,220.64 = 7,234.37/x
  3. Step 3: Cross multiply
    13,203.84x = 18,220.64 × 7,234.37
  4. Step 4: Simplify right side
    13,203.84x = 131,814,724.12
  5. Step 5: Solve for x
    x = 131,814,724.12/13,203.84
  6. Step 6: Final answer
    x = 9,983.06

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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.