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Finding the Fourth Proportional to 13,335.79, 18,402.47 and 7,367.41

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Solution

The fourth proportional to 13,335.79, 18,402.47 and 7,367.41 is: 10,166.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,335.79 : 18,402.47 = 7,367.41 : x
  2. Step 2: Convert to fraction form
    13,335.79/18,402.47 = 7,367.41/x
  3. Step 3: Cross multiply
    13,335.79x = 18,402.47 × 7,367.41
  4. Step 4: Simplify right side
    13,335.79x = 135,578,504.67
  5. Step 5: Solve for x
    x = 135,578,504.67/13,335.79
  6. Step 6: Final answer
    x = 10,166.51

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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.