Home / 11,986.38-16,541.28-6,681.54

Finding the Fourth Proportional to 11,986.38, 16,541.28 and 6,681.54

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Solution

The fourth proportional to 11,986.38, 16,541.28 and 6,681.54 is: 9,220.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,986.38 : 16,541.28 = 6,681.54 : x
  2. Step 2: Convert to fraction form
    11,986.38/16,541.28 = 6,681.54/x
  3. Step 3: Cross multiply
    11,986.38x = 16,541.28 × 6,681.54
  4. Step 4: Simplify right side
    11,986.38x = 110,521,223.97
  5. Step 5: Solve for x
    x = 110,521,223.97/11,986.38
  6. Step 6: Final answer
    x = 9,220.57

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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.