Home / 18,305.43-25,261.62-9,921.93

Finding the Fourth Proportional to 18,305.43, 25,261.62 and 9,921.93

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Solution

The fourth proportional to 18,305.43, 25,261.62 and 9,921.93 is: 13,692.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,305.43 : 25,261.62 = 9,921.93 : x
  2. Step 2: Convert to fraction form
    18,305.43/25,261.62 = 9,921.93/x
  3. Step 3: Cross multiply
    18,305.43x = 25,261.62 × 9,921.93
  4. Step 4: Simplify right side
    18,305.43x = 250,644,025.33
  5. Step 5: Solve for x
    x = 250,644,025.33/18,305.43
  6. Step 6: Final answer
    x = 13,692.33

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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.