Home / 13,631.73-20,455.35-5,310.69

Finding the Fourth Proportional to 13,631.73, 20,455.35 and 5,310.69

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Solution

The fourth proportional to 13,631.73, 20,455.35 and 5,310.69 is: 7,969.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,631.73 : 20,455.35 = 5,310.69 : x
  2. Step 2: Convert to fraction form
    13,631.73/20,455.35 = 5,310.69/x
  3. Step 3: Cross multiply
    13,631.73x = 20,455.35 × 5,310.69
  4. Step 4: Simplify right side
    13,631.73x = 108,632,022.69
  5. Step 5: Solve for x
    x = 108,632,022.69/13,631.73
  6. Step 6: Final answer
    x = 7,969.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.