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Finding the Fourth Proportional to 13,495.72, 20,237.08 and 7,650.76

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Solution

The fourth proportional to 13,495.72, 20,237.08 and 7,650.76 is: 11,472.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,495.72 : 20,237.08 = 7,650.76 : x
  2. Step 2: Convert to fraction form
    13,495.72/20,237.08 = 7,650.76/x
  3. Step 3: Cross multiply
    13,495.72x = 20,237.08 × 7,650.76
  4. Step 4: Simplify right side
    13,495.72x = 154,829,042.18
  5. Step 5: Solve for x
    x = 154,829,042.18/13,495.72
  6. Step 6: Final answer
    x = 11,472.46

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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.