Home / 8,519.75-12,787.25-4,362.60

Finding the Fourth Proportional to 8,519.75, 12,787.25 and 4,362.60

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Solution

The fourth proportional to 8,519.75, 12,787.25 and 4,362.60 is: 6,547.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,519.75 : 12,787.25 = 4,362.60 : x
  2. Step 2: Convert to fraction form
    8,519.75/12,787.25 = 4,362.60/x
  3. Step 3: Cross multiply
    8,519.75x = 12,787.25 × 4,362.60
  4. Step 4: Simplify right side
    8,519.75x = 55,785,635.04
  5. Step 5: Solve for x
    x = 55,785,635.04/8,519.75
  6. Step 6: Final answer
    x = 6,547.81

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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.