Home / 13,786.58-19,032.09-8,485.94

Finding the Fourth Proportional to 13,786.58, 19,032.09 and 8,485.94

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Solution

The fourth proportional to 13,786.58, 19,032.09 and 8,485.94 is: 11,714.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,786.58 : 19,032.09 = 8,485.94 : x
  2. Step 2: Convert to fraction form
    13,786.58/19,032.09 = 8,485.94/x
  3. Step 3: Cross multiply
    13,786.58x = 19,032.09 × 8,485.94
  4. Step 4: Simplify right side
    13,786.58x = 161,505,173.81
  5. Step 5: Solve for x
    x = 161,505,173.81/13,786.58
  6. Step 6: Final answer
    x = 11,714.67

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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.