Home / 13,653.27-20,480.31-5,332.95

Finding the Fourth Proportional to 13,653.27, 20,480.31 and 5,332.95

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Solution

The fourth proportional to 13,653.27, 20,480.31 and 5,332.95 is: 7,999.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,653.27 : 20,480.31 = 5,332.95 : x
  2. Step 2: Convert to fraction form
    13,653.27/20,480.31 = 5,332.95/x
  3. Step 3: Cross multiply
    13,653.27x = 20,480.31 × 5,332.95
  4. Step 4: Simplify right side
    13,653.27x = 109,220,469.21
  5. Step 5: Solve for x
    x = 109,220,469.21/13,653.27
  6. Step 6: Final answer
    x = 7,999.58

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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.