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Finding the Fourth Proportional to 14,308.56, 19,745.76 and 8,020.92

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Solution

The fourth proportional to 14,308.56, 19,745.76 and 8,020.92 is: 11,068.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,308.56 : 19,745.76 = 8,020.92 : x
  2. Step 2: Convert to fraction form
    14,308.56/19,745.76 = 8,020.92/x
  3. Step 3: Cross multiply
    14,308.56x = 19,745.76 × 8,020.92
  4. Step 4: Simplify right side
    14,308.56x = 158,379,161.30
  5. Step 5: Solve for x
    x = 158,379,161.30/14,308.56
  6. Step 6: Final answer
    x = 11,068.84

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Double scale
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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.