Home / 8,169.48-11,325.39-7,725.96

Finding the Fourth Proportional to 8,169.48, 11,325.39 and 7,725.96

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Solution

The fourth proportional to 8,169.48, 11,325.39 and 7,725.96 is: 10,710.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,169.48 : 11,325.39 = 7,725.96 : x
  2. Step 2: Convert to fraction form
    8,169.48/11,325.39 = 7,725.96/x
  3. Step 3: Cross multiply
    8,169.48x = 11,325.39 × 7,725.96
  4. Step 4: Simplify right side
    8,169.48x = 87,499,510.12
  5. Step 5: Solve for x
    x = 87,499,510.12/8,169.48
  6. Step 6: Final answer
    x = 10,710.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.