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Finding the Fourth Proportional to 8,704.08, 12,005.64 and 7,264.44

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Solution

The fourth proportional to 8,704.08, 12,005.64 and 7,264.44 is: 10,019.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,704.08 : 12,005.64 = 7,264.44 : x
  2. Step 2: Convert to fraction form
    8,704.08/12,005.64 = 7,264.44/x
  3. Step 3: Cross multiply
    8,704.08x = 12,005.64 × 7,264.44
  4. Step 4: Simplify right side
    8,704.08x = 87,214,251.44
  5. Step 5: Solve for x
    x = 87,214,251.44/8,704.08
  6. Step 6: Final answer
    x = 10,019.93

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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.