Home / 13,537.36-18,684.57-8,231.05

Finding the Fourth Proportional to 13,537.36, 18,684.57 and 8,231.05

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Solution

The fourth proportional to 13,537.36, 18,684.57 and 8,231.05 is: 11,360.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,537.36 : 18,684.57 = 8,231.05 : x
  2. Step 2: Convert to fraction form
    13,537.36/18,684.57 = 8,231.05/x
  3. Step 3: Cross multiply
    13,537.36x = 18,684.57 × 8,231.05
  4. Step 4: Simplify right side
    13,537.36x = 153,793,629.90
  5. Step 5: Solve for x
    x = 153,793,629.90/13,537.36
  6. Step 6: Final answer
    x = 11,360.68

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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.