Home / 18,381.04-25,365.66-9,997.54

Finding the Fourth Proportional to 18,381.04, 25,365.66 and 9,997.54

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Solution

The fourth proportional to 18,381.04, 25,365.66 and 9,997.54 is: 13,796.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,381.04 : 25,365.66 = 9,997.54 : x
  2. Step 2: Convert to fraction form
    18,381.04/25,365.66 = 9,997.54/x
  3. Step 3: Cross multiply
    18,381.04x = 25,365.66 × 9,997.54
  4. Step 4: Simplify right side
    18,381.04x = 253,594,200.48
  5. Step 5: Solve for x
    x = 253,594,200.48/18,381.04
  6. Step 6: Final answer
    x = 13,796.51

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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.