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Finding the Fourth Proportional to 13,333.41, 18,399.76 and 7,364.12

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Solution

The fourth proportional to 13,333.41, 18,399.76 and 7,364.12 is: 10,162.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,333.41 : 18,399.76 = 7,364.12 : x
  2. Step 2: Convert to fraction form
    13,333.41/18,399.76 = 7,364.12/x
  3. Step 3: Cross multiply
    13,333.41x = 18,399.76 × 7,364.12
  4. Step 4: Simplify right side
    13,333.41x = 135,497,930.20
  5. Step 5: Solve for x
    x = 135,497,930.20/13,333.41
  6. Step 6: Final answer
    x = 10,162.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.