Home / 18,638.37-25,722.77-13,914.45

Finding the Fourth Proportional to 18,638.37, 25,722.77 and 13,914.45

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Solution

The fourth proportional to 18,638.37, 25,722.77 and 13,914.45 is: 19,203.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,638.37 : 25,722.77 = 13,914.45 : x
  2. Step 2: Convert to fraction form
    18,638.37/25,722.77 = 13,914.45/x
  3. Step 3: Cross multiply
    18,638.37x = 25,722.77 × 13,914.45
  4. Step 4: Simplify right side
    18,638.37x = 357,918,127.45
  5. Step 5: Solve for x
    x = 357,918,127.45/18,638.37
  6. Step 6: Final answer
    x = 19,203.30

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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.