Home / 8,309.41-12,455.56-3,628.54

Finding the Fourth Proportional to 8,309.41, 12,455.56 and 3,628.54

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Solution

The fourth proportional to 8,309.41, 12,455.56 and 3,628.54 is: 5,439.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,309.41 : 12,455.56 = 3,628.54 : x
  2. Step 2: Convert to fraction form
    8,309.41/12,455.56 = 3,628.54/x
  3. Step 3: Cross multiply
    8,309.41x = 12,455.56 × 3,628.54
  4. Step 4: Simplify right side
    8,309.41x = 45,195,479.54
  5. Step 5: Solve for x
    x = 45,195,479.54/8,309.41
  6. Step 6: Final answer
    x = 5,439.08

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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.