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Finding the Fourth Proportional to 13,472.15, 18,591.03 and 7,503.66

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Solution

The fourth proportional to 13,472.15, 18,591.03 and 7,503.66 is: 10,354.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,472.15 : 18,591.03 = 7,503.66 : x
  2. Step 2: Convert to fraction form
    13,472.15/18,591.03 = 7,503.66/x
  3. Step 3: Cross multiply
    13,472.15x = 18,591.03 × 7,503.66
  4. Step 4: Simplify right side
    13,472.15x = 139,500,768.17
  5. Step 5: Solve for x
    x = 139,500,768.17/13,472.15
  6. Step 6: Final answer
    x = 10,354.76

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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.