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Finding the Fourth Proportional to 8,705.07, 13,040.19 and 4,996.89

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Solution

The fourth proportional to 8,705.07, 13,040.19 and 4,996.89 is: 7,485.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,705.07 : 13,040.19 = 4,996.89 : x
  2. Step 2: Convert to fraction form
    8,705.07/13,040.19 = 4,996.89/x
  3. Step 3: Cross multiply
    8,705.07x = 13,040.19 × 4,996.89
  4. Step 4: Simplify right side
    8,705.07x = 65,160,395.01
  5. Step 5: Solve for x
    x = 65,160,395.01/8,705.07
  6. Step 6: Final answer
    x = 7,485.34

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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.