Home / 13,209.37-18,228.81-7,241.03

Finding the Fourth Proportional to 13,209.37, 18,228.81 and 7,241.03

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Solution

The fourth proportional to 13,209.37, 18,228.81 and 7,241.03 is: 9,992.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,209.37 : 18,228.81 = 7,241.03 : x
  2. Step 2: Convert to fraction form
    13,209.37/18,228.81 = 7,241.03/x
  3. Step 3: Cross multiply
    13,209.37x = 18,228.81 × 7,241.03
  4. Step 4: Simplify right side
    13,209.37x = 131,995,364.44
  5. Step 5: Solve for x
    x = 131,995,364.44/13,209.37
  6. Step 6: Final answer
    x = 9,992.56

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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.