Home / 18,579.57-25,625.48-12,914.21

Finding the Fourth Proportional to 18,579.57, 25,625.48 and 12,914.21

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Solution

The fourth proportional to 18,579.57, 25,625.48 and 12,914.21 is: 17,811.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,579.57 : 25,625.48 = 12,914.21 : x
  2. Step 2: Convert to fraction form
    18,579.57/25,625.48 = 12,914.21/x
  3. Step 3: Cross multiply
    18,579.57x = 25,625.48 × 12,914.21
  4. Step 4: Simplify right side
    18,579.57x = 330,932,637.37
  5. Step 5: Solve for x
    x = 330,932,637.37/18,579.57
  6. Step 6: Final answer
    x = 17,811.64

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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.