Home / 13,993.38-20,887.70-12,332.68

Finding the Fourth Proportional to 13,993.38, 20,887.70 and 12,332.68

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Solution

The fourth proportional to 13,993.38, 20,887.70 and 12,332.68 is: 18,408.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,993.38 : 20,887.70 = 12,332.68 : x
  2. Step 2: Convert to fraction form
    13,993.38/20,887.70 = 12,332.68/x
  3. Step 3: Cross multiply
    13,993.38x = 20,887.70 × 12,332.68
  4. Step 4: Simplify right side
    13,993.38x = 257,601,206.15
  5. Step 5: Solve for x
    x = 257,601,206.15/13,993.38
  6. Step 6: Final answer
    x = 18,408.79

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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.