Home / 12,817.20-19,226.10-4,506.78

Finding the Fourth Proportional to 12,817.20, 19,226.10 and 4,506.78

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Solution

The fourth proportional to 12,817.20, 19,226.10 and 4,506.78 is: 6,760.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,817.20 : 19,226.10 = 4,506.78 : x
  2. Step 2: Convert to fraction form
    12,817.20/19,226.10 = 4,506.78/x
  3. Step 3: Cross multiply
    12,817.20x = 19,226.10 × 4,506.78
  4. Step 4: Simplify right side
    12,817.20x = 86,647,802.96
  5. Step 5: Solve for x
    x = 86,647,802.96/12,817.20
  6. Step 6: Final answer
    x = 6,760.28

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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.