Home / 18,829.06-28,243.58-7,142.27

Finding the Fourth Proportional to 18,829.06, 28,243.58 and 7,142.27

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Solution

The fourth proportional to 18,829.06, 28,243.58 and 7,142.27 is: 10,713.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,829.06 : 28,243.58 = 7,142.27 : x
  2. Step 2: Convert to fraction form
    18,829.06/28,243.58 = 7,142.27/x
  3. Step 3: Cross multiply
    18,829.06x = 28,243.58 × 7,142.27
  4. Step 4: Simplify right side
    18,829.06x = 201,723,097.20
  5. Step 5: Solve for x
    x = 201,723,097.20/18,829.06
  6. Step 6: Final answer
    x = 10,713.39

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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.