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Finding the Fourth Proportional to 10,500, 14,491.44 and 6,773.28

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Solution

The fourth proportional to 10,500, 14,491.44 and 6,773.28 is: 9,348.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,500 : 14,491.44 = 6,773.28 : x
  2. Step 2: Convert to fraction form
    10,500/14,491.44 = 6,773.28/x
  3. Step 3: Cross multiply
    10,500x = 14,491.44 × 6,773.28
  4. Step 4: Simplify right side
    10,500x = 98,154,580.72
  5. Step 5: Solve for x
    x = 98,154,580.72/10,500
  6. Step 6: Final answer
    x = 9,348.06

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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.