Home / 8,410.64-12,618.39-3,479.36

Finding the Fourth Proportional to 8,410.64, 12,618.39 and 3,479.36

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Solution

The fourth proportional to 8,410.64, 12,618.39 and 3,479.36 is: 5,220.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,410.64 : 12,618.39 = 3,479.36 : x
  2. Step 2: Convert to fraction form
    8,410.64/12,618.39 = 3,479.36/x
  3. Step 3: Cross multiply
    8,410.64x = 12,618.39 × 3,479.36
  4. Step 4: Simplify right side
    8,410.64x = 43,903,921.43
  5. Step 5: Solve for x
    x = 43,903,921.43/8,410.64
  6. Step 6: Final answer
    x = 5,220.05

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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.