Home / 8,485.52-12,719.92-3,556.56

Finding the Fourth Proportional to 8,485.52, 12,719.92 and 3,556.56

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Solution

The fourth proportional to 8,485.52, 12,719.92 and 3,556.56 is: 5,331.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,485.52 : 12,719.92 = 3,556.56 : x
  2. Step 2: Convert to fraction form
    8,485.52/12,719.92 = 3,556.56/x
  3. Step 3: Cross multiply
    8,485.52x = 12,719.92 × 3,556.56
  4. Step 4: Simplify right side
    8,485.52x = 45,239,158.68
  5. Step 5: Solve for x
    x = 45,239,158.68/8,485.52
  6. Step 6: Final answer
    x = 5,331.34

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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.