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Finding the Fourth Proportional to 14,671.80, 20,250 and 9,636.84

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Solution

The fourth proportional to 14,671.80, 20,250 and 9,636.84 is: 13,300.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,671.80 : 20,250 = 9,636.84 : x
  2. Step 2: Convert to fraction form
    14,671.80/20,250 = 9,636.84/x
  3. Step 3: Cross multiply
    14,671.80x = 20,250 × 9,636.84
  4. Step 4: Simplify right side
    14,671.80x = 195,146,010
  5. Step 5: Solve for x
    x = 195,146,010/14,671.80
  6. Step 6: Final answer
    x = 13,300.75

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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.