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Finding the Fourth Proportional to 8,495.44, 11,721 and 4,768.72

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Solution

The fourth proportional to 8,495.44, 11,721 and 4,768.72 is: 6,579.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,495.44 : 11,721 = 4,768.72 : x
  2. Step 2: Convert to fraction form
    8,495.44/11,721 = 4,768.72/x
  3. Step 3: Cross multiply
    8,495.44x = 11,721 × 4,768.72
  4. Step 4: Simplify right side
    8,495.44x = 55,894,167.12
  5. Step 5: Solve for x
    x = 55,894,167.12/8,495.44
  6. Step 6: Final answer
    x = 6,579.31

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1.5x scale

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.