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Finding the Fourth Proportional to 8,846.85, 12,206.86 and 5,017.78

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Solution

The fourth proportional to 8,846.85, 12,206.86 and 5,017.78 is: 6,923.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,846.85 : 12,206.86 = 5,017.78 : x
  2. Step 2: Convert to fraction form
    8,846.85/12,206.86 = 5,017.78/x
  3. Step 3: Cross multiply
    8,846.85x = 12,206.86 × 5,017.78
  4. Step 4: Simplify right side
    8,846.85x = 61,251,337.97
  5. Step 5: Solve for x
    x = 61,251,337.97/8,846.85
  6. Step 6: Final answer
    x = 6,923.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.