Home / 13,223.96-18,249.34-7,255.28

Finding the Fourth Proportional to 13,223.96, 18,249.34 and 7,255.28

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Solution

The fourth proportional to 13,223.96, 18,249.34 and 7,255.28 is: 10,012.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,223.96 : 18,249.34 = 7,255.28 : x
  2. Step 2: Convert to fraction form
    13,223.96/18,249.34 = 7,255.28/x
  3. Step 3: Cross multiply
    13,223.96x = 18,249.34 × 7,255.28
  4. Step 4: Simplify right side
    13,223.96x = 132,404,071.52
  5. Step 5: Solve for x
    x = 132,404,071.52/13,223.96
  6. Step 6: Final answer
    x = 10,012.44

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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.