Home / 11,986.70-16,541.67-6,681.41

Finding the Fourth Proportional to 11,986.70, 16,541.67 and 6,681.41

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Solution

The fourth proportional to 11,986.70, 16,541.67 and 6,681.41 is: 9,220.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,986.70 : 16,541.67 = 6,681.41 : x
  2. Step 2: Convert to fraction form
    11,986.70/16,541.67 = 6,681.41/x
  3. Step 3: Cross multiply
    11,986.70x = 16,541.67 × 6,681.41
  4. Step 4: Simplify right side
    11,986.70x = 110,521,596.65
  5. Step 5: Solve for x
    x = 110,521,596.65/11,986.70
  6. Step 6: Final answer
    x = 9,220.36

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1.5x scale

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.