Home / 15,380.28-21,230.03-9,563.94

Finding the Fourth Proportional to 15,380.28, 21,230.03 and 9,563.94

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Solution

The fourth proportional to 15,380.28, 21,230.03 and 9,563.94 is: 13,201.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,380.28 : 21,230.03 = 9,563.94 : x
  2. Step 2: Convert to fraction form
    15,380.28/21,230.03 = 9,563.94/x
  3. Step 3: Cross multiply
    15,380.28x = 21,230.03 × 9,563.94
  4. Step 4: Simplify right side
    15,380.28x = 203,042,685.30
  5. Step 5: Solve for x
    x = 203,042,685.30/15,380.28
  6. Step 6: Final answer
    x = 13,201.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.