Home / 8,801.21-13,170.35-7,644.83

Finding the Fourth Proportional to 8,801.21, 13,170.35 and 7,644.83

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Solution

The fourth proportional to 8,801.21, 13,170.35 and 7,644.83 is: 11,439.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,801.21 : 13,170.35 = 7,644.83 : x
  2. Step 2: Convert to fraction form
    8,801.21/13,170.35 = 7,644.83/x
  3. Step 3: Cross multiply
    8,801.21x = 13,170.35 × 7,644.83
  4. Step 4: Simplify right side
    8,801.21x = 100,685,138.83
  5. Step 5: Solve for x
    x = 100,685,138.83/8,801.21
  6. Step 6: Final answer
    x = 11,439.93

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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.