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Finding the Fourth Proportional to 13,227.57, 18,253.44 and 7,259.49

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Solution

The fourth proportional to 13,227.57, 18,253.44 and 7,259.49 is: 10,017.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,227.57 : 18,253.44 = 7,259.49 : x
  2. Step 2: Convert to fraction form
    13,227.57/18,253.44 = 7,259.49/x
  3. Step 3: Cross multiply
    13,227.57x = 18,253.44 × 7,259.49
  4. Step 4: Simplify right side
    13,227.57x = 132,510,665.15
  5. Step 5: Solve for x
    x = 132,510,665.15/13,227.57
  6. Step 6: Final answer
    x = 10,017.76

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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.