Home / 11,261.49-16,866.86-5,422.47

Finding the Fourth Proportional to 11,261.49, 16,866.86 and 5,422.47

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Solution

The fourth proportional to 11,261.49, 16,866.86 and 5,422.47 is: 8,121.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,261.49 : 16,866.86 = 5,422.47 : x
  2. Step 2: Convert to fraction form
    11,261.49/16,866.86 = 5,422.47/x
  3. Step 3: Cross multiply
    11,261.49x = 16,866.86 × 5,422.47
  4. Step 4: Simplify right side
    11,261.49x = 91,460,015.23
  5. Step 5: Solve for x
    x = 91,460,015.23/11,261.49
  6. Step 6: Final answer
    x = 8,121.48

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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.