Home / 13,865.37-19,134.90-8,203.44

Finding the Fourth Proportional to 13,865.37, 19,134.90 and 8,203.44

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Solution

The fourth proportional to 13,865.37, 19,134.90 and 8,203.44 is: 11,321.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,865.37 : 19,134.90 = 8,203.44 : x
  2. Step 2: Convert to fraction form
    13,865.37/19,134.90 = 8,203.44/x
  3. Step 3: Cross multiply
    13,865.37x = 19,134.90 × 8,203.44
  4. Step 4: Simplify right side
    13,865.37x = 156,972,004.06
  5. Step 5: Solve for x
    x = 156,972,004.06/13,865.37
  6. Step 6: Final answer
    x = 11,321.16

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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.