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Finding the Fourth Proportional to 13,377.52, 18,461.01 and 7,409.44

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Solution

The fourth proportional to 13,377.52, 18,461.01 and 7,409.44 is: 10,225.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,377.52 : 18,461.01 = 7,409.44 : x
  2. Step 2: Convert to fraction form
    13,377.52/18,461.01 = 7,409.44/x
  3. Step 3: Cross multiply
    13,377.52x = 18,461.01 × 7,409.44
  4. Step 4: Simplify right side
    13,377.52x = 136,785,745.93
  5. Step 5: Solve for x
    x = 136,785,745.93/13,377.52
  6. Step 6: Final answer
    x = 10,225.05

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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.