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Finding the Fourth Proportional to 13,451.94, 18,562.77 and 7,483.20

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Solution

The fourth proportional to 13,451.94, 18,562.77 and 7,483.20 is: 10,326.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,451.94 : 18,562.77 = 7,483.20 : x
  2. Step 2: Convert to fraction form
    13,451.94/18,562.77 = 7,483.20/x
  3. Step 3: Cross multiply
    13,451.94x = 18,562.77 × 7,483.20
  4. Step 4: Simplify right side
    13,451.94x = 138,908,920.46
  5. Step 5: Solve for x
    x = 138,908,920.46/13,451.94
  6. Step 6: Final answer
    x = 10,326.31

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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.