Home / 18,820.13-25,953.75-11,265.26

Finding the Fourth Proportional to 18,820.13, 25,953.75 and 11,265.26

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Solution

The fourth proportional to 18,820.13, 25,953.75 and 11,265.26 is: 15,535.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,820.13 : 25,953.75 = 11,265.26 : x
  2. Step 2: Convert to fraction form
    18,820.13/25,953.75 = 11,265.26/x
  3. Step 3: Cross multiply
    18,820.13x = 25,953.75 × 11,265.26
  4. Step 4: Simplify right side
    18,820.13x = 292,375,741.73
  5. Step 5: Solve for x
    x = 292,375,741.73/18,820.13
  6. Step 6: Final answer
    x = 15,535.27

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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.