Home / 11,121.24-16,681.28-2,801.25

Finding the Fourth Proportional to 11,121.24, 16,681.28 and 2,801.25

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Solution

The fourth proportional to 11,121.24, 16,681.28 and 2,801.25 is: 4,201.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,121.24 : 16,681.28 = 2,801.25 : x
  2. Step 2: Convert to fraction form
    11,121.24/16,681.28 = 2,801.25/x
  3. Step 3: Cross multiply
    11,121.24x = 16,681.28 × 2,801.25
  4. Step 4: Simplify right side
    11,121.24x = 46,728,421.59
  5. Step 5: Solve for x
    x = 46,728,421.59/11,121.24
  6. Step 6: Final answer
    x = 4,201.73

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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.