Home / 13,653.44-20,480.15-4,294.28

Finding the Fourth Proportional to 13,653.44, 20,480.15 and 4,294.28

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Solution

The fourth proportional to 13,653.44, 20,480.15 and 4,294.28 is: 6,441.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,653.44 : 20,480.15 = 4,294.28 : x
  2. Step 2: Convert to fraction form
    13,653.44/20,480.15 = 4,294.28/x
  3. Step 3: Cross multiply
    13,653.44x = 20,480.15 × 4,294.28
  4. Step 4: Simplify right side
    13,653.44x = 87,947,528.27
  5. Step 5: Solve for x
    x = 87,947,528.27/13,653.44
  6. Step 6: Final answer
    x = 6,441.42

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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.