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Finding the Fourth Proportional to 13,357.44, 20,036.80 and 4,124.80

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Solution

The fourth proportional to 13,357.44, 20,036.80 and 4,124.80 is: 6,187.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,357.44 : 20,036.80 = 4,124.80 : x
  2. Step 2: Convert to fraction form
    13,357.44/20,036.80 = 4,124.80/x
  3. Step 3: Cross multiply
    13,357.44x = 20,036.80 × 4,124.80
  4. Step 4: Simplify right side
    13,357.44x = 82,647,792.64
  5. Step 5: Solve for x
    x = 82,647,792.64/13,357.44
  6. Step 6: Final answer
    x = 6,187.40

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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.