Home / 13,664.68-18,857.27-7,998.39

Finding the Fourth Proportional to 13,664.68, 18,857.27 and 7,998.39

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Solution

The fourth proportional to 13,664.68, 18,857.27 and 7,998.39 is: 11,037.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,664.68 : 18,857.27 = 7,998.39 : x
  2. Step 2: Convert to fraction form
    13,664.68/18,857.27 = 7,998.39/x
  3. Step 3: Cross multiply
    13,664.68x = 18,857.27 × 7,998.39
  4. Step 4: Simplify right side
    13,664.68x = 150,827,819.79
  5. Step 5: Solve for x
    x = 150,827,819.79/13,664.68
  6. Step 6: Final answer
    x = 11,037.79

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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.