Home / 18,639.42-25,726.38-11,469.30

Finding the Fourth Proportional to 18,639.42, 25,726.38 and 11,469.30

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Solution

The fourth proportional to 18,639.42, 25,726.38 and 11,469.30 is: 15,830.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,639.42 : 25,726.38 = 11,469.30 : x
  2. Step 2: Convert to fraction form
    18,639.42/25,726.38 = 11,469.30/x
  3. Step 3: Cross multiply
    18,639.42x = 25,726.38 × 11,469.30
  4. Step 4: Simplify right side
    18,639.42x = 295,063,570.13
  5. Step 5: Solve for x
    x = 295,063,570.13/18,639.42
  6. Step 6: Final answer
    x = 15,830.08

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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.