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Finding the Fourth Proportional to 8,698.11, 13,047.84 and 4,311.15

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Solution

The fourth proportional to 8,698.11, 13,047.84 and 4,311.15 is: 6,467.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,698.11 : 13,047.84 = 4,311.15 : x
  2. Step 2: Convert to fraction form
    8,698.11/13,047.84 = 4,311.15/x
  3. Step 3: Cross multiply
    8,698.11x = 13,047.84 × 4,311.15
  4. Step 4: Simplify right side
    8,698.11x = 56,251,195.42
  5. Step 5: Solve for x
    x = 56,251,195.42/8,698.11
  6. Step 6: Final answer
    x = 6,467.06

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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.