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Finding the Fourth Proportional to 14,473.28, 19,958.80 and 8,808.80

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Solution

The fourth proportional to 14,473.28, 19,958.80 and 8,808.80 is: 12,147.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,473.28 : 19,958.80 = 8,808.80 : x
  2. Step 2: Convert to fraction form
    14,473.28/19,958.80 = 8,808.80/x
  3. Step 3: Cross multiply
    14,473.28x = 19,958.80 × 8,808.80
  4. Step 4: Simplify right side
    14,473.28x = 175,813,077.44
  5. Step 5: Solve for x
    x = 175,813,077.44/14,473.28
  6. Step 6: Final answer
    x = 12,147.42

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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.