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Finding the Fourth Proportional to 8,564.77, 12,836.88 and 4,406.74

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Solution

The fourth proportional to 8,564.77, 12,836.88 and 4,406.74 is: 6,604.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,564.77 : 12,836.88 = 4,406.74 : x
  2. Step 2: Convert to fraction form
    8,564.77/12,836.88 = 4,406.74/x
  3. Step 3: Cross multiply
    8,564.77x = 12,836.88 × 4,406.74
  4. Step 4: Simplify right side
    8,564.77x = 56,568,760.48
  5. Step 5: Solve for x
    x = 56,568,760.48/8,564.77
  6. Step 6: Final answer
    x = 6,604.82

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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.