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Finding the Fourth Proportional to 14,543.82, 21,815.82 and 6,644.70

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Solution

The fourth proportional to 14,543.82, 21,815.82 and 6,644.70 is: 9,967.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,543.82 : 21,815.82 = 6,644.70 : x
  2. Step 2: Convert to fraction form
    14,543.82/21,815.82 = 6,644.70/x
  3. Step 3: Cross multiply
    14,543.82x = 21,815.82 × 6,644.70
  4. Step 4: Simplify right side
    14,543.82x = 144,959,579.15
  5. Step 5: Solve for x
    x = 144,959,579.15/14,543.82
  6. Step 6: Final answer
    x = 9,967.09

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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.