Home / 11,021.67-16,439.46-9,359.55

Finding the Fourth Proportional to 11,021.67, 16,439.46 and 9,359.55

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Solution

The fourth proportional to 11,021.67, 16,439.46 and 9,359.55 is: 13,960.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,021.67 : 16,439.46 = 9,359.55 : x
  2. Step 2: Convert to fraction form
    11,021.67/16,439.46 = 9,359.55/x
  3. Step 3: Cross multiply
    11,021.67x = 16,439.46 × 9,359.55
  4. Step 4: Simplify right side
    11,021.67x = 153,865,912.74
  5. Step 5: Solve for x
    x = 153,865,912.74/11,021.67
  6. Step 6: Final answer
    x = 13,960.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.