Home / 8,724.64-13,086.96-3,529.12

Finding the Fourth Proportional to 8,724.64, 13,086.96 and 3,529.12

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Solution

The fourth proportional to 8,724.64, 13,086.96 and 3,529.12 is: 5,293.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,724.64 : 13,086.96 = 3,529.12 : x
  2. Step 2: Convert to fraction form
    8,724.64/13,086.96 = 3,529.12/x
  3. Step 3: Cross multiply
    8,724.64x = 13,086.96 × 3,529.12
  4. Step 4: Simplify right side
    8,724.64x = 46,185,452.28
  5. Step 5: Solve for x
    x = 46,185,452.28/8,724.64
  6. Step 6: Final answer
    x = 5,293.68

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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.