Home / 18,732.03-28,090.23-7,631.19

Finding the Fourth Proportional to 18,732.03, 28,090.23 and 7,631.19

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Solution

The fourth proportional to 18,732.03, 28,090.23 and 7,631.19 is: 11,443.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,732.03 : 28,090.23 = 7,631.19 : x
  2. Step 2: Convert to fraction form
    18,732.03/28,090.23 = 7,631.19/x
  3. Step 3: Cross multiply
    18,732.03x = 28,090.23 × 7,631.19
  4. Step 4: Simplify right side
    18,732.03x = 214,361,882.27
  5. Step 5: Solve for x
    x = 214,361,882.27/18,732.03
  6. Step 6: Final answer
    x = 11,443.60

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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.