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Finding the Fourth Proportional to 12,607.92, 18,911.86 and 5,204.24

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Solution

The fourth proportional to 12,607.92, 18,911.86 and 5,204.24 is: 7,806.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,607.92 : 18,911.86 = 5,204.24 : x
  2. Step 2: Convert to fraction form
    12,607.92/18,911.86 = 5,204.24/x
  3. Step 3: Cross multiply
    12,607.92x = 18,911.86 × 5,204.24
  4. Step 4: Simplify right side
    12,607.92x = 98,421,858.29
  5. Step 5: Solve for x
    x = 98,421,858.29/12,607.92
  6. Step 6: Final answer
    x = 7,806.35

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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.