Home / 13,234.48-18,257.76-8,197.36

Finding the Fourth Proportional to 13,234.48, 18,257.76 and 8,197.36

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Solution

The fourth proportional to 13,234.48, 18,257.76 and 8,197.36 is: 11,308.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,234.48 : 18,257.76 = 8,197.36 : x
  2. Step 2: Convert to fraction form
    13,234.48/18,257.76 = 8,197.36/x
  3. Step 3: Cross multiply
    13,234.48x = 18,257.76 × 8,197.36
  4. Step 4: Simplify right side
    13,234.48x = 149,665,431.51
  5. Step 5: Solve for x
    x = 149,665,431.51/13,234.48
  6. Step 6: Final answer
    x = 11,308.75

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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.