Home / 13,265.12-18,253.78-13,183.12

Finding the Fourth Proportional to 13,265.12, 18,253.78 and 13,183.12

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Solution

The fourth proportional to 13,265.12, 18,253.78 and 13,183.12 is: 18,140.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,265.12 : 18,253.78 = 13,183.12 : x
  2. Step 2: Convert to fraction form
    13,265.12/18,253.78 = 13,183.12/x
  3. Step 3: Cross multiply
    13,265.12x = 18,253.78 × 13,183.12
  4. Step 4: Simplify right side
    13,265.12x = 240,641,772.19
  5. Step 5: Solve for x
    x = 240,641,772.19/13,265.12
  6. Step 6: Final answer
    x = 18,140.94

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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.