Home / 11,918.94-16,450.47-6,886.41

Finding the Fourth Proportional to 11,918.94, 16,450.47 and 6,886.41

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Solution

The fourth proportional to 11,918.94, 16,450.47 and 6,886.41 is: 9,504.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,918.94 : 16,450.47 = 6,886.41 : x
  2. Step 2: Convert to fraction form
    11,918.94/16,450.47 = 6,886.41/x
  3. Step 3: Cross multiply
    11,918.94x = 16,450.47 × 6,886.41
  4. Step 4: Simplify right side
    11,918.94x = 113,284,681.11
  5. Step 5: Solve for x
    x = 113,284,681.11/11,918.94
  6. Step 6: Final answer
    x = 9,504.59

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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.