Home / 8,417.52-12,618.99-3,219.75

Finding the Fourth Proportional to 8,417.52, 12,618.99 and 3,219.75

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Solution

The fourth proportional to 8,417.52, 12,618.99 and 3,219.75 is: 4,826.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,417.52 : 12,618.99 = 3,219.75 : x
  2. Step 2: Convert to fraction form
    8,417.52/12,618.99 = 3,219.75/x
  3. Step 3: Cross multiply
    8,417.52x = 12,618.99 × 3,219.75
  4. Step 4: Simplify right side
    8,417.52x = 40,629,993.05
  5. Step 5: Solve for x
    x = 40,629,993.05/8,417.52
  6. Step 6: Final answer
    x = 4,826.84

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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.