Home / 18,682.20-28,034.16-7,003.56

Finding the Fourth Proportional to 18,682.20, 28,034.16 and 7,003.56

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Solution

The fourth proportional to 18,682.20, 28,034.16 and 7,003.56 is: 10,509.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,682.20 : 28,034.16 = 7,003.56 : x
  2. Step 2: Convert to fraction form
    18,682.20/28,034.16 = 7,003.56/x
  3. Step 3: Cross multiply
    18,682.20x = 28,034.16 × 7,003.56
  4. Step 4: Simplify right side
    18,682.20x = 196,338,921.61
  5. Step 5: Solve for x
    x = 196,338,921.61/18,682.20
  6. Step 6: Final answer
    x = 10,509.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.