Home / 11,136.45-15,370.80-6,943.89

Finding the Fourth Proportional to 11,136.45, 15,370.80 and 6,943.89

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Solution

The fourth proportional to 11,136.45, 15,370.80 and 6,943.89 is: 9,584.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,136.45 : 15,370.80 = 6,943.89 : x
  2. Step 2: Convert to fraction form
    11,136.45/15,370.80 = 6,943.89/x
  3. Step 3: Cross multiply
    11,136.45x = 15,370.80 × 6,943.89
  4. Step 4: Simplify right side
    11,136.45x = 106,733,144.41
  5. Step 5: Solve for x
    x = 106,733,144.41/11,136.45
  6. Step 6: Final answer
    x = 9,584.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.