Home / 13,190.59-18,203.03-7,222.62

Finding the Fourth Proportional to 13,190.59, 18,203.03 and 7,222.62

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Solution

The fourth proportional to 13,190.59, 18,203.03 and 7,222.62 is: 9,967.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,190.59 : 18,203.03 = 7,222.62 : x
  2. Step 2: Convert to fraction form
    13,190.59/18,203.03 = 7,222.62/x
  3. Step 3: Cross multiply
    13,190.59x = 18,203.03 × 7,222.62
  4. Step 4: Simplify right side
    13,190.59x = 131,473,568.54
  5. Step 5: Solve for x
    x = 131,473,568.54/13,190.59
  6. Step 6: Final answer
    x = 9,967.22

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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.