Home / 11,059.39-15,255.20-10,321.28

Finding the Fourth Proportional to 11,059.39, 15,255.20 and 10,321.28

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Solution

The fourth proportional to 11,059.39, 15,255.20 and 10,321.28 is: 14,237.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,059.39 : 15,255.20 = 10,321.28 : x
  2. Step 2: Convert to fraction form
    11,059.39/15,255.20 = 10,321.28/x
  3. Step 3: Cross multiply
    11,059.39x = 15,255.20 × 10,321.28
  4. Step 4: Simplify right side
    11,059.39x = 157,453,197.39
  5. Step 5: Solve for x
    x = 157,453,197.39/11,059.39
  6. Step 6: Final answer
    x = 14,237.06

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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.