Home / 18,725.22-25,829.28-11,166.48

Finding the Fourth Proportional to 18,725.22, 25,829.28 and 11,166.48

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Solution

The fourth proportional to 18,725.22, 25,829.28 and 11,166.48 is: 15,402.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,725.22 : 25,829.28 = 11,166.48 : x
  2. Step 2: Convert to fraction form
    18,725.22/25,829.28 = 11,166.48/x
  3. Step 3: Cross multiply
    18,725.22x = 25,829.28 × 11,166.48
  4. Step 4: Simplify right side
    18,725.22x = 288,422,138.53
  5. Step 5: Solve for x
    x = 288,422,138.53/18,725.22
  6. Step 6: Final answer
    x = 15,402.87

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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.