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Finding the Fourth Proportional to 13,968.88, 19,275.44 and 8,000.19

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Solution

The fourth proportional to 13,968.88, 19,275.44 and 8,000.19 is: 11,039.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,968.88 : 19,275.44 = 8,000.19 : x
  2. Step 2: Convert to fraction form
    13,968.88/19,275.44 = 8,000.19/x
  3. Step 3: Cross multiply
    13,968.88x = 19,275.44 × 8,000.19
  4. Step 4: Simplify right side
    13,968.88x = 154,207,142.33
  5. Step 5: Solve for x
    x = 154,207,142.33/13,968.88
  6. Step 6: Final answer
    x = 11,039.34

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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.