Home / 13,269.36-18,310.14-7,963.32

Finding the Fourth Proportional to 13,269.36, 18,310.14 and 7,963.32

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Solution

The fourth proportional to 13,269.36, 18,310.14 and 7,963.32 is: 10,988.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,269.36 : 18,310.14 = 7,963.32 : x
  2. Step 2: Convert to fraction form
    13,269.36/18,310.14 = 7,963.32/x
  3. Step 3: Cross multiply
    13,269.36x = 18,310.14 × 7,963.32
  4. Step 4: Simplify right side
    13,269.36x = 145,809,504.06
  5. Step 5: Solve for x
    x = 145,809,504.06/13,269.36
  6. Step 6: Final answer
    x = 10,988.44

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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.