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Finding the Fourth Proportional to 8,828.13, 13,231.44 and 4,879.23

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Solution

The fourth proportional to 8,828.13, 13,231.44 and 4,879.23 is: 7,312.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,828.13 : 13,231.44 = 4,879.23 : x
  2. Step 2: Convert to fraction form
    8,828.13/13,231.44 = 4,879.23/x
  3. Step 3: Cross multiply
    8,828.13x = 13,231.44 × 4,879.23
  4. Step 4: Simplify right side
    8,828.13x = 64,559,232.20
  5. Step 5: Solve for x
    x = 64,559,232.20/8,828.13
  6. Step 6: Final answer
    x = 7,312.90

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.