Home / 13,403.44-19,996.36-12,677.68

Finding the Fourth Proportional to 13,403.44, 19,996.36 and 12,677.68

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Solution

The fourth proportional to 13,403.44, 19,996.36 and 12,677.68 is: 18,913.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,403.44 : 19,996.36 = 12,677.68 : x
  2. Step 2: Convert to fraction form
    13,403.44/19,996.36 = 12,677.68/x
  3. Step 3: Cross multiply
    13,403.44x = 19,996.36 × 12,677.68
  4. Step 4: Simplify right side
    13,403.44x = 253,507,453.24
  5. Step 5: Solve for x
    x = 253,507,453.24/13,403.44
  6. Step 6: Final answer
    x = 18,913.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.