Home / 13,890.58-19,166.04-8,227.12

Finding the Fourth Proportional to 13,890.58, 19,166.04 and 8,227.12

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Solution

The fourth proportional to 13,890.58, 19,166.04 and 8,227.12 is: 11,351.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,890.58 : 19,166.04 = 8,227.12 : x
  2. Step 2: Convert to fraction form
    13,890.58/19,166.04 = 8,227.12/x
  3. Step 3: Cross multiply
    13,890.58x = 19,166.04 × 8,227.12
  4. Step 4: Simplify right side
    13,890.58x = 157,681,311.00
  5. Step 5: Solve for x
    x = 157,681,311.00/13,890.58
  6. Step 6: Final answer
    x = 11,351.67

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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.