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Finding the Fourth Proportional to 14,305.81, 19,747.39 and 8,339.35

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Solution

The fourth proportional to 14,305.81, 19,747.39 and 8,339.35 is: 11,511.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,305.81 : 19,747.39 = 8,339.35 : x
  2. Step 2: Convert to fraction form
    14,305.81/19,747.39 = 8,339.35/x
  3. Step 3: Cross multiply
    14,305.81x = 19,747.39 × 8,339.35
  4. Step 4: Simplify right side
    14,305.81x = 164,680,396.80
  5. Step 5: Solve for x
    x = 164,680,396.80/14,305.81
  6. Step 6: Final answer
    x = 11,511.43

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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.