Home / 13,968.72-20,962.19-12,842.42

Finding the Fourth Proportional to 13,968.72, 20,962.19 and 12,842.42

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Solution

The fourth proportional to 13,968.72, 20,962.19 and 12,842.42 is: 19,272.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,968.72 : 20,962.19 = 12,842.42 : x
  2. Step 2: Convert to fraction form
    13,968.72/20,962.19 = 12,842.42/x
  3. Step 3: Cross multiply
    13,968.72x = 20,962.19 × 12,842.42
  4. Step 4: Simplify right side
    13,968.72x = 269,205,175.39
  5. Step 5: Solve for x
    x = 269,205,175.39/13,968.72
  6. Step 6: Final answer
    x = 19,272.00

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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.