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Finding the Fourth Proportional to 8,806.57, 13,131.30 and 7,828.57

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Solution

The fourth proportional to 8,806.57, 13,131.30 and 7,828.57 is: 11,673.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,806.57 : 13,131.30 = 7,828.57 : x
  2. Step 2: Convert to fraction form
    8,806.57/13,131.30 = 7,828.57/x
  3. Step 3: Cross multiply
    8,806.57x = 13,131.30 × 7,828.57
  4. Step 4: Simplify right side
    8,806.57x = 102,799,301.24
  5. Step 5: Solve for x
    x = 102,799,301.24/8,806.57
  6. Step 6: Final answer
    x = 11,673.02

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.