Home / 13,659.93-18,842.85-8,622.36

Finding the Fourth Proportional to 13,659.93, 18,842.85 and 8,622.36

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Solution

The fourth proportional to 13,659.93, 18,842.85 and 8,622.36 is: 11,893.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,659.93 : 18,842.85 = 8,622.36 : x
  2. Step 2: Convert to fraction form
    13,659.93/18,842.85 = 8,622.36/x
  3. Step 3: Cross multiply
    13,659.93x = 18,842.85 × 8,622.36
  4. Step 4: Simplify right side
    13,659.93x = 162,469,836.13
  5. Step 5: Solve for x
    x = 162,469,836.13/13,659.93
  6. Step 6: Final answer
    x = 11,893.90

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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.