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Finding the Fourth Proportional to 19,954.05, 29,928.68 and 8,266.05

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Solution

The fourth proportional to 19,954.05, 29,928.68 and 8,266.05 is: 12,398.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,954.05 : 29,928.68 = 8,266.05 : x
  2. Step 2: Convert to fraction form
    19,954.05/29,928.68 = 8,266.05/x
  3. Step 3: Cross multiply
    19,954.05x = 29,928.68 × 8,266.05
  4. Step 4: Simplify right side
    19,954.05x = 247,391,923.98
  5. Step 5: Solve for x
    x = 247,391,923.98/19,954.05
  6. Step 6: Final answer
    x = 12,398.08

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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.