Home / 8,704.20-12,011.80-4,725.30

Finding the Fourth Proportional to 8,704.20, 12,011.80 and 4,725.30

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Solution

The fourth proportional to 8,704.20, 12,011.80 and 4,725.30 is: 6,520.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,704.20 : 12,011.80 = 4,725.30 : x
  2. Step 2: Convert to fraction form
    8,704.20/12,011.80 = 4,725.30/x
  3. Step 3: Cross multiply
    8,704.20x = 12,011.80 × 4,725.30
  4. Step 4: Simplify right side
    8,704.20x = 56,759,358.54
  5. Step 5: Solve for x
    x = 56,759,358.54/8,704.20
  6. Step 6: Final answer
    x = 6,520.92

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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.