Home / 15,025.82-20,728.64-9,722.34

Finding the Fourth Proportional to 15,025.82, 20,728.64 and 9,722.34

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Solution

The fourth proportional to 15,025.82, 20,728.64 and 9,722.34 is: 13,412.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,025.82 : 20,728.64 = 9,722.34 : x
  2. Step 2: Convert to fraction form
    15,025.82/20,728.64 = 9,722.34/x
  3. Step 3: Cross multiply
    15,025.82x = 20,728.64 × 9,722.34
  4. Step 4: Simplify right side
    15,025.82x = 201,530,910.12
  5. Step 5: Solve for x
    x = 201,530,910.12/15,025.82
  6. Step 6: Final answer
    x = 13,412.31

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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.