Home / 11,118.90-16,687.80-4,549.80

Finding the Fourth Proportional to 11,118.90, 16,687.80 and 4,549.80

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Solution

The fourth proportional to 11,118.90, 16,687.80 and 4,549.80 is: 6,828.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,118.90 : 16,687.80 = 4,549.80 : x
  2. Step 2: Convert to fraction form
    11,118.90/16,687.80 = 4,549.80/x
  3. Step 3: Cross multiply
    11,118.90x = 16,687.80 × 4,549.80
  4. Step 4: Simplify right side
    11,118.90x = 75,926,152.44
  5. Step 5: Solve for x
    x = 75,926,152.44/11,118.90
  6. Step 6: Final answer
    x = 6,828.57

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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.