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Finding the Fourth Proportional to 13,760.01, 18,992.22 and 7,795.20

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Solution

The fourth proportional to 13,760.01, 18,992.22 and 7,795.20 is: 10,759.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,760.01 : 18,992.22 = 7,795.20 : x
  2. Step 2: Convert to fraction form
    13,760.01/18,992.22 = 7,795.20/x
  3. Step 3: Cross multiply
    13,760.01x = 18,992.22 × 7,795.20
  4. Step 4: Simplify right side
    13,760.01x = 148,048,153.34
  5. Step 5: Solve for x
    x = 148,048,153.34/13,760.01
  6. Step 6: Final answer
    x = 10,759.31

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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.