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Finding the Fourth Proportional to 13,335.39, 18,402.53 and 7,366.59

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Solution

The fourth proportional to 13,335.39, 18,402.53 and 7,366.59 is: 10,165.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,335.39 : 18,402.53 = 7,366.59 : x
  2. Step 2: Convert to fraction form
    13,335.39/18,402.53 = 7,366.59/x
  3. Step 3: Cross multiply
    13,335.39x = 18,402.53 × 7,366.59
  4. Step 4: Simplify right side
    13,335.39x = 135,563,856.64
  5. Step 5: Solve for x
    x = 135,563,856.64/13,335.39
  6. Step 6: Final answer
    x = 10,165.72

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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.