Home / 14,180.40-21,270.60-9,190.80

Finding the Fourth Proportional to 14,180.40, 21,270.60 and 9,190.80

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Solution

The fourth proportional to 14,180.40, 21,270.60 and 9,190.80 is: 13,786.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,180.40 : 21,270.60 = 9,190.80 : x
  2. Step 2: Convert to fraction form
    14,180.40/21,270.60 = 9,190.80/x
  3. Step 3: Cross multiply
    14,180.40x = 21,270.60 × 9,190.80
  4. Step 4: Simplify right side
    14,180.40x = 195,493,830.48
  5. Step 5: Solve for x
    x = 195,493,830.48/14,180.40
  6. Step 6: Final answer
    x = 13,786.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.