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Finding the Fourth Proportional to 8,704.77, 12,012.24 and 4,725.78

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Solution

The fourth proportional to 8,704.77, 12,012.24 and 4,725.78 is: 6,521.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,704.77 : 12,012.24 = 4,725.78 : x
  2. Step 2: Convert to fraction form
    8,704.77/12,012.24 = 4,725.78/x
  3. Step 3: Cross multiply
    8,704.77x = 12,012.24 × 4,725.78
  4. Step 4: Simplify right side
    8,704.77x = 56,767,203.55
  5. Step 5: Solve for x
    x = 56,767,203.55/8,704.77
  6. Step 6: Final answer
    x = 6,521.39

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Half scale
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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.