Home / 13,664.26-18,848.01-8,619.67

Finding the Fourth Proportional to 13,664.26, 18,848.01 and 8,619.67

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Solution

The fourth proportional to 13,664.26, 18,848.01 and 8,619.67 is: 11,889.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,664.26 : 18,848.01 = 8,619.67 : x
  2. Step 2: Convert to fraction form
    13,664.26/18,848.01 = 8,619.67/x
  3. Step 3: Cross multiply
    13,664.26x = 18,848.01 × 8,619.67
  4. Step 4: Simplify right side
    13,664.26x = 162,463,626.36
  5. Step 5: Solve for x
    x = 162,463,626.36/13,664.26
  6. Step 6: Final answer
    x = 11,889.68

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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.