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Finding the Fourth Proportional to 19,365.80, 29,054.10 and 8,277.80

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Solution

The fourth proportional to 19,365.80, 29,054.10 and 8,277.80 is: 12,419.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,365.80 : 29,054.10 = 8,277.80 : x
  2. Step 2: Convert to fraction form
    19,365.80/29,054.10 = 8,277.80/x
  3. Step 3: Cross multiply
    19,365.80x = 29,054.10 × 8,277.80
  4. Step 4: Simplify right side
    19,365.80x = 240,504,028.98
  5. Step 5: Solve for x
    x = 240,504,028.98/19,365.80
  6. Step 6: Final answer
    x = 12,419.01

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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.