Home / 13,546.12-20,315.82-9,190.60

Finding the Fourth Proportional to 13,546.12, 20,315.82 and 9,190.60

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Solution

The fourth proportional to 13,546.12, 20,315.82 and 9,190.60 is: 13,783.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,546.12 : 20,315.82 = 9,190.60 : x
  2. Step 2: Convert to fraction form
    13,546.12/20,315.82 = 9,190.60/x
  3. Step 3: Cross multiply
    13,546.12x = 20,315.82 × 9,190.60
  4. Step 4: Simplify right side
    13,546.12x = 186,714,575.29
  5. Step 5: Solve for x
    x = 186,714,575.29/13,546.12
  6. Step 6: Final answer
    x = 13,783.62

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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.