Home / 13,190.41-18,202.77-7,222.47

Finding the Fourth Proportional to 13,190.41, 18,202.77 and 7,222.47

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Solution

The fourth proportional to 13,190.41, 18,202.77 and 7,222.47 is: 9,967.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,190.41 : 18,202.77 = 7,222.47 : x
  2. Step 2: Convert to fraction form
    13,190.41/18,202.77 = 7,222.47/x
  3. Step 3: Cross multiply
    13,190.41x = 18,202.77 × 7,222.47
  4. Step 4: Simplify right side
    13,190.41x = 131,468,960.24
  5. Step 5: Solve for x
    x = 131,468,960.24/13,190.41
  6. Step 6: Final answer
    x = 9,967.01

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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.