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Finding the Fourth Proportional to 8,506.79, 12,760.83 and 2,266.78

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Solution

The fourth proportional to 8,506.79, 12,760.83 and 2,266.78 is: 3,400.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,506.79 : 12,760.83 = 2,266.78 : x
  2. Step 2: Convert to fraction form
    8,506.79/12,760.83 = 2,266.78/x
  3. Step 3: Cross multiply
    8,506.79x = 12,760.83 × 2,266.78
  4. Step 4: Simplify right side
    8,506.79x = 28,925,994.23
  5. Step 5: Solve for x
    x = 28,925,994.23/8,506.79
  6. Step 6: Final answer
    x = 3,400.34

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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.