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Finding the Fourth Proportional to 13,309.84, 18,367.48 and 7,341.52

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Solution

The fourth proportional to 13,309.84, 18,367.48 and 7,341.52 is: 10,131.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309.84 : 18,367.48 = 7,341.52 : x
  2. Step 2: Convert to fraction form
    13,309.84/18,367.48 = 7,341.52/x
  3. Step 3: Cross multiply
    13,309.84x = 18,367.48 × 7,341.52
  4. Step 4: Simplify right side
    13,309.84x = 134,845,221.77
  5. Step 5: Solve for x
    x = 134,845,221.77/13,309.84
  6. Step 6: Final answer
    x = 10,131.24

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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.