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Finding the Fourth Proportional to 8,359.16, 12,539.36 and 2,812.48

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Solution

The fourth proportional to 8,359.16, 12,539.36 and 2,812.48 is: 4,218.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,359.16 : 12,539.36 = 2,812.48 : x
  2. Step 2: Convert to fraction form
    8,359.16/12,539.36 = 2,812.48/x
  3. Step 3: Cross multiply
    8,359.16x = 12,539.36 × 2,812.48
  4. Step 4: Simplify right side
    8,359.16x = 35,266,699.21
  5. Step 5: Solve for x
    x = 35,266,699.21/8,359.16
  6. Step 6: Final answer
    x = 4,218.93

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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.