Home / 18,824.43-28,225.17-7,134.78

Finding the Fourth Proportional to 18,824.43, 28,225.17 and 7,134.78

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Solution

The fourth proportional to 18,824.43, 28,225.17 and 7,134.78 is: 10,697.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,824.43 : 28,225.17 = 7,134.78 : x
  2. Step 2: Convert to fraction form
    18,824.43/28,225.17 = 7,134.78/x
  3. Step 3: Cross multiply
    18,824.43x = 28,225.17 × 7,134.78
  4. Step 4: Simplify right side
    18,824.43x = 201,380,378.41
  5. Step 5: Solve for x
    x = 201,380,378.41/18,824.43
  6. Step 6: Final answer
    x = 10,697.82

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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.