Home / 13,693.20-20,544.12-8,152.80

Finding the Fourth Proportional to 13,693.20, 20,544.12 and 8,152.80

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Solution

The fourth proportional to 13,693.20, 20,544.12 and 8,152.80 is: 12,231.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,693.20 : 20,544.12 = 8,152.80 : x
  2. Step 2: Convert to fraction form
    13,693.20/20,544.12 = 8,152.80/x
  3. Step 3: Cross multiply
    13,693.20x = 20,544.12 × 8,152.80
  4. Step 4: Simplify right side
    13,693.20x = 167,492,101.54
  5. Step 5: Solve for x
    x = 167,492,101.54/13,693.20
  6. Step 6: Final answer
    x = 12,231.77

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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.