Home / 18,604.32-25,645.52-11,420.97

Finding the Fourth Proportional to 18,604.32, 25,645.52 and 11,420.97

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Solution

The fourth proportional to 18,604.32, 25,645.52 and 11,420.97 is: 15,743.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,604.32 : 25,645.52 = 11,420.97 : x
  2. Step 2: Convert to fraction form
    18,604.32/25,645.52 = 11,420.97/x
  3. Step 3: Cross multiply
    18,604.32x = 25,645.52 × 11,420.97
  4. Step 4: Simplify right side
    18,604.32x = 292,896,657.45
  5. Step 5: Solve for x
    x = 292,896,657.45/18,604.32
  6. Step 6: Final answer
    x = 15,743.48

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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.