Home / 13,816.21-20,728.35-4,456.04

Finding the Fourth Proportional to 13,816.21, 20,728.35 and 4,456.04

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Solution

The fourth proportional to 13,816.21, 20,728.35 and 4,456.04 is: 6,685.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,816.21 : 20,728.35 = 4,456.04 : x
  2. Step 2: Convert to fraction form
    13,816.21/20,728.35 = 4,456.04/x
  3. Step 3: Cross multiply
    13,816.21x = 20,728.35 × 4,456.04
  4. Step 4: Simplify right side
    13,816.21x = 92,366,347.53
  5. Step 5: Solve for x
    x = 92,366,347.53/13,816.21
  6. Step 6: Final answer
    x = 6,685.36

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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.