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Finding the Fourth Proportional to 15,750.52, 21,735.68 and 8,676.92

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Solution

The fourth proportional to 15,750.52, 21,735.68 and 8,676.92 is: 11,974.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,750.52 : 21,735.68 = 8,676.92 : x
  2. Step 2: Convert to fraction form
    15,750.52/21,735.68 = 8,676.92/x
  3. Step 3: Cross multiply
    15,750.52x = 21,735.68 × 8,676.92
  4. Step 4: Simplify right side
    15,750.52x = 188,598,756.51
  5. Step 5: Solve for x
    x = 188,598,756.51/15,750.52
  6. Step 6: Final answer
    x = 11,974.13

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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.