Home / 9,121.33-13,677.33-4,186.69

Finding the Fourth Proportional to 9,121.33, 13,677.33 and 4,186.69

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Solution

The fourth proportional to 9,121.33, 13,677.33 and 4,186.69 is: 6,277.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,121.33 : 13,677.33 = 4,186.69 : x
  2. Step 2: Convert to fraction form
    9,121.33/13,677.33 = 4,186.69/x
  3. Step 3: Cross multiply
    9,121.33x = 13,677.33 × 4,186.69
  4. Step 4: Simplify right side
    9,121.33x = 57,262,710.47
  5. Step 5: Solve for x
    x = 57,262,710.47/9,121.33
  6. Step 6: Final answer
    x = 6,277.89

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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.