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Finding the Fourth Proportional to 8,738.70, 12,063.78 and 6,847.08

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Solution

The fourth proportional to 8,738.70, 12,063.78 and 6,847.08 is: 9,452.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,738.70 : 12,063.78 = 6,847.08 : x
  2. Step 2: Convert to fraction form
    8,738.70/12,063.78 = 6,847.08/x
  3. Step 3: Cross multiply
    8,738.70x = 12,063.78 × 6,847.08
  4. Step 4: Simplify right side
    8,738.70x = 82,601,666.76
  5. Step 5: Solve for x
    x = 82,601,666.76/8,738.70
  6. Step 6: Final answer
    x = 9,452.40

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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.