Home / 18,145.26-25,040.34-11,435.22

Finding the Fourth Proportional to 18,145.26, 25,040.34 and 11,435.22

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Solution

The fourth proportional to 18,145.26, 25,040.34 and 11,435.22 is: 15,780.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,145.26 : 25,040.34 = 11,435.22 : x
  2. Step 2: Convert to fraction form
    18,145.26/25,040.34 = 11,435.22/x
  3. Step 3: Cross multiply
    18,145.26x = 25,040.34 × 11,435.22
  4. Step 4: Simplify right side
    18,145.26x = 286,341,796.77
  5. Step 5: Solve for x
    x = 286,341,796.77/18,145.26
  6. Step 6: Final answer
    x = 15,780.53

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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.