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Finding the Fourth Proportional to 14,247, 21,370.25 and 5,483.81

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Solution

The fourth proportional to 14,247, 21,370.25 and 5,483.81 is: 8,225.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,247 : 21,370.25 = 5,483.81 : x
  2. Step 2: Convert to fraction form
    14,247/21,370.25 = 5,483.81/x
  3. Step 3: Cross multiply
    14,247x = 21,370.25 × 5,483.81
  4. Step 4: Simplify right side
    14,247x = 117,190,256.38
  5. Step 5: Solve for x
    x = 117,190,256.38/14,247
  6. Step 6: Final answer
    x = 8,225.61

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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.