Home / 13,194.48-18,208.44-7,144.80

Finding the Fourth Proportional to 13,194.48, 18,208.44 and 7,144.80

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Solution

The fourth proportional to 13,194.48, 18,208.44 and 7,144.80 is: 9,859.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,194.48 : 18,208.44 = 7,144.80 : x
  2. Step 2: Convert to fraction form
    13,194.48/18,208.44 = 7,144.80/x
  3. Step 3: Cross multiply
    13,194.48x = 18,208.44 × 7,144.80
  4. Step 4: Simplify right side
    13,194.48x = 130,095,662.11
  5. Step 5: Solve for x
    x = 130,095,662.11/13,194.48
  6. Step 6: Final answer
    x = 9,859.86

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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.