Home / 12,968.54-17,899.26-8,436.89

Finding the Fourth Proportional to 12,968.54, 17,899.26 and 8,436.89

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Solution

The fourth proportional to 12,968.54, 17,899.26 and 8,436.89 is: 11,644.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,968.54 : 17,899.26 = 8,436.89 : x
  2. Step 2: Convert to fraction form
    12,968.54/17,899.26 = 8,436.89/x
  3. Step 3: Cross multiply
    12,968.54x = 17,899.26 × 8,436.89
  4. Step 4: Simplify right side
    12,968.54x = 151,014,087.70
  5. Step 5: Solve for x
    x = 151,014,087.70/12,968.54
  6. Step 6: Final answer
    x = 11,644.65

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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.