Home / 18,857.47-28,286.21-4,817.53

Finding the Fourth Proportional to 18,857.47, 28,286.21 and 4,817.53

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Solution

The fourth proportional to 18,857.47, 28,286.21 and 4,817.53 is: 7,226.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,857.47 : 28,286.21 = 4,817.53 : x
  2. Step 2: Convert to fraction form
    18,857.47/28,286.21 = 4,817.53/x
  3. Step 3: Cross multiply
    18,857.47x = 28,286.21 × 4,817.53
  4. Step 4: Simplify right side
    18,857.47x = 136,269,694.60
  5. Step 5: Solve for x
    x = 136,269,694.60/18,857.47
  6. Step 6: Final answer
    x = 7,226.30

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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.