Home / 9,153.26-13,721.67-4,220.38

Finding the Fourth Proportional to 9,153.26, 13,721.67 and 4,220.38

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Solution

The fourth proportional to 9,153.26, 13,721.67 and 4,220.38 is: 6,326.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,153.26 : 13,721.67 = 4,220.38 : x
  2. Step 2: Convert to fraction form
    9,153.26/13,721.67 = 4,220.38/x
  3. Step 3: Cross multiply
    9,153.26x = 13,721.67 × 4,220.38
  4. Step 4: Simplify right side
    9,153.26x = 57,910,661.63
  5. Step 5: Solve for x
    x = 57,910,661.63/9,153.26
  6. Step 6: Final answer
    x = 6,326.78

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1.5x scale

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.