Home / 14,137.90-19,512.75-8,168.56

Finding the Fourth Proportional to 14,137.90, 19,512.75 and 8,168.56

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Solution

The fourth proportional to 14,137.90, 19,512.75 and 8,168.56 is: 11,274.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,137.90 : 19,512.75 = 8,168.56 : x
  2. Step 2: Convert to fraction form
    14,137.90/19,512.75 = 8,168.56/x
  3. Step 3: Cross multiply
    14,137.90x = 19,512.75 × 8,168.56
  4. Step 4: Simplify right side
    14,137.90x = 159,391,069.14
  5. Step 5: Solve for x
    x = 159,391,069.14/14,137.90
  6. Step 6: Final answer
    x = 11,274.03

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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.