Home / 18,351.32-25,324.80-9,967.76

Finding the Fourth Proportional to 18,351.32, 25,324.80 and 9,967.76

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Solution

The fourth proportional to 18,351.32, 25,324.80 and 9,967.76 is: 13,755.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,351.32 : 25,324.80 = 9,967.76 : x
  2. Step 2: Convert to fraction form
    18,351.32/25,324.80 = 9,967.76/x
  3. Step 3: Cross multiply
    18,351.32x = 25,324.80 × 9,967.76
  4. Step 4: Simplify right side
    18,351.32x = 252,431,528.45
  5. Step 5: Solve for x
    x = 252,431,528.45/18,351.32
  6. Step 6: Final answer
    x = 13,755.50

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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.