Home / 8,429.94-12,644.87-2,586.38

Finding the Fourth Proportional to 8,429.94, 12,644.87 and 2,586.38

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Solution

The fourth proportional to 8,429.94, 12,644.87 and 2,586.38 is: 3,879.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,429.94 : 12,644.87 = 2,586.38 : x
  2. Step 2: Convert to fraction form
    8,429.94/12,644.87 = 2,586.38/x
  3. Step 3: Cross multiply
    8,429.94x = 12,644.87 × 2,586.38
  4. Step 4: Simplify right side
    8,429.94x = 32,704,362.71
  5. Step 5: Solve for x
    x = 32,704,362.71/8,429.94
  6. Step 6: Final answer
    x = 3,879.55

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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.