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Finding the Fourth Proportional to 8,485.56, 11,710.05 and 4,709.29

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Solution

The fourth proportional to 8,485.56, 11,710.05 and 4,709.29 is: 6,498.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,485.56 : 11,710.05 = 4,709.29 : x
  2. Step 2: Convert to fraction form
    8,485.56/11,710.05 = 4,709.29/x
  3. Step 3: Cross multiply
    8,485.56x = 11,710.05 × 4,709.29
  4. Step 4: Simplify right side
    8,485.56x = 55,146,018.34
  5. Step 5: Solve for x
    x = 55,146,018.34/8,485.56
  6. Step 6: Final answer
    x = 6,498.81

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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.