Home / 18,676.04-28,016.12-7,581.13

Finding the Fourth Proportional to 18,676.04, 28,016.12 and 7,581.13

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Solution

The fourth proportional to 18,676.04, 28,016.12 and 7,581.13 is: 11,372.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,676.04 : 28,016.12 = 7,581.13 : x
  2. Step 2: Convert to fraction form
    18,676.04/28,016.12 = 7,581.13/x
  3. Step 3: Cross multiply
    18,676.04x = 28,016.12 × 7,581.13
  4. Step 4: Simplify right side
    18,676.04x = 212,393,796.73
  5. Step 5: Solve for x
    x = 212,393,796.73/18,676.04
  6. Step 6: Final answer
    x = 11,372.53

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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.