Home / 14,399.39-19,864.36-8,427.36

Finding the Fourth Proportional to 14,399.39, 19,864.36 and 8,427.36

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Solution

The fourth proportional to 14,399.39, 19,864.36 and 8,427.36 is: 11,625.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,399.39 : 19,864.36 = 8,427.36 : x
  2. Step 2: Convert to fraction form
    14,399.39/19,864.36 = 8,427.36/x
  3. Step 3: Cross multiply
    14,399.39x = 19,864.36 × 8,427.36
  4. Step 4: Simplify right side
    14,399.39x = 167,404,112.89
  5. Step 5: Solve for x
    x = 167,404,112.89/14,399.39
  6. Step 6: Final answer
    x = 11,625.78

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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.