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Finding the Fourth Proportional to 12,806.62, 19,205.60 and 6,228.62

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Solution

The fourth proportional to 12,806.62, 19,205.60 and 6,228.62 is: 9,340.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,806.62 : 19,205.60 = 6,228.62 : x
  2. Step 2: Convert to fraction form
    12,806.62/19,205.60 = 6,228.62/x
  3. Step 3: Cross multiply
    12,806.62x = 19,205.60 × 6,228.62
  4. Step 4: Simplify right side
    12,806.62x = 119,624,384.27
  5. Step 5: Solve for x
    x = 119,624,384.27/12,806.62
  6. Step 6: Final answer
    x = 9,340.82

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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.