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Finding the Fourth Proportional to 8,992.65, 12,409.39 and 5,013.68

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Solution

The fourth proportional to 8,992.65, 12,409.39 and 5,013.68 is: 6,918.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,992.65 : 12,409.39 = 5,013.68 : x
  2. Step 2: Convert to fraction form
    8,992.65/12,409.39 = 5,013.68/x
  3. Step 3: Cross multiply
    8,992.65x = 12,409.39 × 5,013.68
  4. Step 4: Simplify right side
    8,992.65x = 62,216,666.90
  5. Step 5: Solve for x
    x = 62,216,666.90/8,992.65
  6. Step 6: Final answer
    x = 6,918.62

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.