Home / 13,708.36-20,563.55-12,076.21

Finding the Fourth Proportional to 13,708.36, 20,563.55 and 12,076.21

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Solution

The fourth proportional to 13,708.36, 20,563.55 and 12,076.21 is: 18,115.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,708.36 : 20,563.55 = 12,076.21 : x
  2. Step 2: Convert to fraction form
    13,708.36/20,563.55 = 12,076.21/x
  3. Step 3: Cross multiply
    13,708.36x = 20,563.55 × 12,076.21
  4. Step 4: Simplify right side
    13,708.36x = 248,329,584.95
  5. Step 5: Solve for x
    x = 248,329,584.95/13,708.36
  6. Step 6: Final answer
    x = 18,115.20

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1.5x scale

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.