Home / 13,827.21-19,076.13-8,512.80

Finding the Fourth Proportional to 13,827.21, 19,076.13 and 8,512.80

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Solution

The fourth proportional to 13,827.21, 19,076.13 and 8,512.80 is: 11,744.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,827.21 : 19,076.13 = 8,512.80 : x
  2. Step 2: Convert to fraction form
    13,827.21/19,076.13 = 8,512.80/x
  3. Step 3: Cross multiply
    13,827.21x = 19,076.13 × 8,512.80
  4. Step 4: Simplify right side
    13,827.21x = 162,391,279.46
  5. Step 5: Solve for x
    x = 162,391,279.46/13,827.21
  6. Step 6: Final answer
    x = 11,744.33

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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.