Home / 18,383.37-25,348.78-12,708.27

Finding the Fourth Proportional to 18,383.37, 25,348.78 and 12,708.27

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Solution

The fourth proportional to 18,383.37, 25,348.78 and 12,708.27 is: 17,523.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,383.37 : 25,348.78 = 12,708.27 : x
  2. Step 2: Convert to fraction form
    18,383.37/25,348.78 = 12,708.27/x
  3. Step 3: Cross multiply
    18,383.37x = 25,348.78 × 12,708.27
  4. Step 4: Simplify right side
    18,383.37x = 322,139,140.41
  5. Step 5: Solve for x
    x = 322,139,140.41/18,383.37
  6. Step 6: Final answer
    x = 17,523.40

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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.