Home / 13,135.75-19,692.57-6,112.20

Finding the Fourth Proportional to 13,135.75, 19,692.57 and 6,112.20

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Solution

The fourth proportional to 13,135.75, 19,692.57 and 6,112.20 is: 9,163.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,135.75 : 19,692.57 = 6,112.20 : x
  2. Step 2: Convert to fraction form
    13,135.75/19,692.57 = 6,112.20/x
  3. Step 3: Cross multiply
    13,135.75x = 19,692.57 × 6,112.20
  4. Step 4: Simplify right side
    13,135.75x = 120,364,926.35
  5. Step 5: Solve for x
    x = 120,364,926.35/13,135.75
  6. Step 6: Final answer
    x = 9,163.16

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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.