Home / 13,107.44-18,089.46-8,074.59

Finding the Fourth Proportional to 13,107.44, 18,089.46 and 8,074.59

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Solution

The fourth proportional to 13,107.44, 18,089.46 and 8,074.59 is: 11,143.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,107.44 : 18,089.46 = 8,074.59 : x
  2. Step 2: Convert to fraction form
    13,107.44/18,089.46 = 8,074.59/x
  3. Step 3: Cross multiply
    13,107.44x = 18,089.46 × 8,074.59
  4. Step 4: Simplify right side
    13,107.44x = 146,064,972.82
  5. Step 5: Solve for x
    x = 146,064,972.82/13,107.44
  6. Step 6: Final answer
    x = 11,143.67

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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.