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Finding the Fourth Proportional to 14,001.32, 21,003 and 4,640.96

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Solution

The fourth proportional to 14,001.32, 21,003 and 4,640.96 is: 6,961.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,001.32 : 21,003 = 4,640.96 : x
  2. Step 2: Convert to fraction form
    14,001.32/21,003 = 4,640.96/x
  3. Step 3: Cross multiply
    14,001.32x = 21,003 × 4,640.96
  4. Step 4: Simplify right side
    14,001.32x = 97,474,082.88
  5. Step 5: Solve for x
    x = 97,474,082.88/14,001.32
  6. Step 6: Final answer
    x = 6,961.78

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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.