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Finding the Fourth Proportional to 13,332.20, 18,397.53 and 7,364.12

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Solution

The fourth proportional to 13,332.20, 18,397.53 and 7,364.12 is: 10,161.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,332.20 : 18,397.53 = 7,364.12 : x
  2. Step 2: Convert to fraction form
    13,332.20/18,397.53 = 7,364.12/x
  3. Step 3: Cross multiply
    13,332.20x = 18,397.53 × 7,364.12
  4. Step 4: Simplify right side
    13,332.20x = 135,481,526.64
  5. Step 5: Solve for x
    x = 135,481,526.64/13,332.20
  6. Step 6: Final answer
    x = 10,161.98

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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.