Home / 15,021.20-22,488.60-9,189.20

Finding the Fourth Proportional to 15,021.20, 22,488.60 and 9,189.20

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Solution

The fourth proportional to 15,021.20, 22,488.60 and 9,189.20 is: 13,757.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,021.20 : 22,488.60 = 9,189.20 : x
  2. Step 2: Convert to fraction form
    15,021.20/22,488.60 = 9,189.20/x
  3. Step 3: Cross multiply
    15,021.20x = 22,488.60 × 9,189.20
  4. Step 4: Simplify right side
    15,021.20x = 206,652,243.12
  5. Step 5: Solve for x
    x = 206,652,243.12/15,021.20
  6. Step 6: Final answer
    x = 13,757.37

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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.