Home / 8,571.13-12,858.59-3,644.98

Finding the Fourth Proportional to 8,571.13, 12,858.59 and 3,644.98

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Solution

The fourth proportional to 8,571.13, 12,858.59 and 3,644.98 is: 5,468.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,571.13 : 12,858.59 = 3,644.98 : x
  2. Step 2: Convert to fraction form
    8,571.13/12,858.59 = 3,644.98/x
  3. Step 3: Cross multiply
    8,571.13x = 12,858.59 × 3,644.98
  4. Step 4: Simplify right side
    8,571.13x = 46,869,303.38
  5. Step 5: Solve for x
    x = 46,869,303.38/8,571.13
  6. Step 6: Final answer
    x = 5,468.28

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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.