Home / 12,818.42-17,692.26-8,101.80

Finding the Fourth Proportional to 12,818.42, 17,692.26 and 8,101.80

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Solution

The fourth proportional to 12,818.42, 17,692.26 and 8,101.80 is: 11,182.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,818.42 : 17,692.26 = 8,101.80 : x
  2. Step 2: Convert to fraction form
    12,818.42/17,692.26 = 8,101.80/x
  3. Step 3: Cross multiply
    12,818.42x = 17,692.26 × 8,101.80
  4. Step 4: Simplify right side
    12,818.42x = 143,339,152.07
  5. Step 5: Solve for x
    x = 143,339,152.07/12,818.42
  6. Step 6: Final answer
    x = 11,182.28

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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.