Home / 13,371.96-18,453.60-8,664.42

Finding the Fourth Proportional to 13,371.96, 18,453.60 and 8,664.42

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Solution

The fourth proportional to 13,371.96, 18,453.60 and 8,664.42 is: 11,957.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,371.96 : 18,453.60 = 8,664.42 : x
  2. Step 2: Convert to fraction form
    13,371.96/18,453.60 = 8,664.42/x
  3. Step 3: Cross multiply
    13,371.96x = 18,453.60 × 8,664.42
  4. Step 4: Simplify right side
    13,371.96x = 159,889,740.91
  5. Step 5: Solve for x
    x = 159,889,740.91/13,371.96
  6. Step 6: Final answer
    x = 11,957.09

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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.