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Finding the Fourth Proportional to 8,728.00, 12,044.63 and 4,749.10

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Solution

The fourth proportional to 8,728.00, 12,044.63 and 4,749.10 is: 6,553.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,728.00 : 12,044.63 = 4,749.10 : x
  2. Step 2: Convert to fraction form
    8,728.00/12,044.63 = 4,749.10/x
  3. Step 3: Cross multiply
    8,728.00x = 12,044.63 × 4,749.10
  4. Step 4: Simplify right side
    8,728.00x = 57,201,128.59
  5. Step 5: Solve for x
    x = 57,201,128.59/8,728.00
  6. Step 6: Final answer
    x = 6,553.75

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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.