Home / 12,270.21-16,933.56-7,237.38

Finding the Fourth Proportional to 12,270.21, 16,933.56 and 7,237.38

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Solution

The fourth proportional to 12,270.21, 16,933.56 and 7,237.38 is: 9,987.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,270.21 : 16,933.56 = 7,237.38 : x
  2. Step 2: Convert to fraction form
    12,270.21/16,933.56 = 7,237.38/x
  3. Step 3: Cross multiply
    12,270.21x = 16,933.56 × 7,237.38
  4. Step 4: Simplify right side
    12,270.21x = 122,554,608.47
  5. Step 5: Solve for x
    x = 122,554,608.47/12,270.21
  6. Step 6: Final answer
    x = 9,987.98

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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.