Home / 13,442.09-18,550.44-8,133.80

Finding the Fourth Proportional to 13,442.09, 18,550.44 and 8,133.80

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Solution

The fourth proportional to 13,442.09, 18,550.44 and 8,133.80 is: 11,224.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,442.09 : 18,550.44 = 8,133.80 : x
  2. Step 2: Convert to fraction form
    13,442.09/18,550.44 = 8,133.80/x
  3. Step 3: Cross multiply
    13,442.09x = 18,550.44 × 8,133.80
  4. Step 4: Simplify right side
    13,442.09x = 150,885,476.12
  5. Step 5: Solve for x
    x = 150,885,476.12/13,442.09
  6. Step 6: Final answer
    x = 11,224.86

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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.