Home / 13,190.60-18,203.43-7,222.82

Finding the Fourth Proportional to 13,190.60, 18,203.43 and 7,222.82

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Solution

The fourth proportional to 13,190.60, 18,203.43 and 7,222.82 is: 9,967.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,190.60 : 18,203.43 = 7,222.82 : x
  2. Step 2: Convert to fraction form
    13,190.60/18,203.43 = 7,222.82/x
  3. Step 3: Cross multiply
    13,190.60x = 18,203.43 × 7,222.82
  4. Step 4: Simplify right side
    13,190.60x = 131,480,136.74
  5. Step 5: Solve for x
    x = 131,480,136.74/13,190.60
  6. Step 6: Final answer
    x = 9,967.72

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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.