Home / 18,770.90-28,147.26-7,673.18

Finding the Fourth Proportional to 18,770.90, 28,147.26 and 7,673.18

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Solution

The fourth proportional to 18,770.90, 28,147.26 and 7,673.18 is: 11,506.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,770.90 : 28,147.26 = 7,673.18 : x
  2. Step 2: Convert to fraction form
    18,770.90/28,147.26 = 7,673.18/x
  3. Step 3: Cross multiply
    18,770.90x = 28,147.26 × 7,673.18
  4. Step 4: Simplify right side
    18,770.90x = 215,978,992.49
  5. Step 5: Solve for x
    x = 215,978,992.49/18,770.90
  6. Step 6: Final answer
    x = 11,506.05

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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.