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Finding the Fourth Proportional to 13,236, 18,265.71 and 7,268.05

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Solution

The fourth proportional to 13,236, 18,265.71 and 7,268.05 is: 10,029.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,236 : 18,265.71 = 7,268.05 : x
  2. Step 2: Convert to fraction form
    13,236/18,265.71 = 7,268.05/x
  3. Step 3: Cross multiply
    13,236x = 18,265.71 × 7,268.05
  4. Step 4: Simplify right side
    13,236x = 132,756,093.57
  5. Step 5: Solve for x
    x = 132,756,093.57/13,236
  6. Step 6: Final answer
    x = 10,029.93

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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.