Home / 15,028.63-20,739.73-8,656.37

Finding the Fourth Proportional to 15,028.63, 20,739.73 and 8,656.37

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Solution

The fourth proportional to 15,028.63, 20,739.73 and 8,656.37 is: 11,945.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,028.63 : 20,739.73 = 8,656.37 : x
  2. Step 2: Convert to fraction form
    15,028.63/20,739.73 = 8,656.37/x
  3. Step 3: Cross multiply
    15,028.63x = 20,739.73 × 8,656.37
  4. Step 4: Simplify right side
    15,028.63x = 179,530,794.75
  5. Step 5: Solve for x
    x = 179,530,794.75/15,028.63
  6. Step 6: Final answer
    x = 11,945.92

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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.