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Finding the Fourth Proportional to 13,762.39, 18,993.26 and 7,795.12

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Solution

The fourth proportional to 13,762.39, 18,993.26 and 7,795.12 is: 10,757.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,762.39 : 18,993.26 = 7,795.12 : x
  2. Step 2: Convert to fraction form
    13,762.39/18,993.26 = 7,795.12/x
  3. Step 3: Cross multiply
    13,762.39x = 18,993.26 × 7,795.12
  4. Step 4: Simplify right side
    13,762.39x = 148,054,740.89
  5. Step 5: Solve for x
    x = 148,054,740.89/13,762.39
  6. Step 6: Final answer
    x = 10,757.92

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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.