Home / 8,704.07-12,011.70-4,725.21

Finding the Fourth Proportional to 8,704.07, 12,011.70 and 4,725.21

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Solution

The fourth proportional to 8,704.07, 12,011.70 and 4,725.21 is: 6,520.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,704.07 : 12,011.70 = 4,725.21 : x
  2. Step 2: Convert to fraction form
    8,704.07/12,011.70 = 4,725.21/x
  3. Step 3: Cross multiply
    8,704.07x = 12,011.70 × 4,725.21
  4. Step 4: Simplify right side
    8,704.07x = 56,757,804.96
  5. Step 5: Solve for x
    x = 56,757,804.96/8,704.07
  6. Step 6: Final answer
    x = 6,520.84

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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.