Home / 13,623.12-20,422.86-11,302.44

Finding the Fourth Proportional to 13,623.12, 20,422.86 and 11,302.44

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Solution

The fourth proportional to 13,623.12, 20,422.86 and 11,302.44 is: 16,943.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,623.12 : 20,422.86 = 11,302.44 : x
  2. Step 2: Convert to fraction form
    13,623.12/20,422.86 = 11,302.44/x
  3. Step 3: Cross multiply
    13,623.12x = 20,422.86 × 11,302.44
  4. Step 4: Simplify right side
    13,623.12x = 230,828,149.78
  5. Step 5: Solve for x
    x = 230,828,149.78/13,623.12
  6. Step 6: Final answer
    x = 16,943.85

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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.