Home / 13,845.07-20,733.66-12,513.79

Finding the Fourth Proportional to 13,845.07, 20,733.66 and 12,513.79

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Solution

The fourth proportional to 13,845.07, 20,733.66 and 12,513.79 is: 18,740.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,845.07 : 20,733.66 = 12,513.79 : x
  2. Step 2: Convert to fraction form
    13,845.07/20,733.66 = 12,513.79/x
  3. Step 3: Cross multiply
    13,845.07x = 20,733.66 × 12,513.79
  4. Step 4: Simplify right side
    13,845.07x = 259,456,563.50
  5. Step 5: Solve for x
    x = 259,456,563.50/13,845.07
  6. Step 6: Final answer
    x = 18,740.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.