Home / 14,137.80-19,508.82-8,168.67

Finding the Fourth Proportional to 14,137.80, 19,508.82 and 8,168.67

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Solution

The fourth proportional to 14,137.80, 19,508.82 and 8,168.67 is: 11,271.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,137.80 : 19,508.82 = 8,168.67 : x
  2. Step 2: Convert to fraction form
    14,137.80/19,508.82 = 8,168.67/x
  3. Step 3: Cross multiply
    14,137.80x = 19,508.82 × 8,168.67
  4. Step 4: Simplify right side
    14,137.80x = 159,361,112.67
  5. Step 5: Solve for x
    x = 159,361,112.67/14,137.80
  6. Step 6: Final answer
    x = 11,271.99

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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.