Home / 12,728.01-19,092.56-7,794.57

Finding the Fourth Proportional to 12,728.01, 19,092.56 and 7,794.57

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Solution

The fourth proportional to 12,728.01, 19,092.56 and 7,794.57 is: 11,692.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,728.01 : 19,092.56 = 7,794.57 : x
  2. Step 2: Convert to fraction form
    12,728.01/19,092.56 = 7,794.57/x
  3. Step 3: Cross multiply
    12,728.01x = 19,092.56 × 7,794.57
  4. Step 4: Simplify right side
    12,728.01x = 148,818,295.40
  5. Step 5: Solve for x
    x = 148,818,295.40/12,728.01
  6. Step 6: Final answer
    x = 11,692.19

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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.