Home / 8,529.15-12,792.68-2,289.66

Finding the Fourth Proportional to 8,529.15, 12,792.68 and 2,289.66

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Solution

The fourth proportional to 8,529.15, 12,792.68 and 2,289.66 is: 3,434.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,529.15 : 12,792.68 = 2,289.66 : x
  2. Step 2: Convert to fraction form
    8,529.15/12,792.68 = 2,289.66/x
  3. Step 3: Cross multiply
    8,529.15x = 12,792.68 × 2,289.66
  4. Step 4: Simplify right side
    8,529.15x = 29,290,887.69
  5. Step 5: Solve for x
    x = 29,290,887.69/8,529.15
  6. Step 6: Final answer
    x = 3,434.21

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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.