Home / 13,546.12-20,322-4,787.32

Finding the Fourth Proportional to 13,546.12, 20,322 and 4,787.32

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Solution

The fourth proportional to 13,546.12, 20,322 and 4,787.32 is: 7,181.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,546.12 : 20,322 = 4,787.32 : x
  2. Step 2: Convert to fraction form
    13,546.12/20,322 = 4,787.32/x
  3. Step 3: Cross multiply
    13,546.12x = 20,322 × 4,787.32
  4. Step 4: Simplify right side
    13,546.12x = 97,287,917.04
  5. Step 5: Solve for x
    x = 97,287,917.04/13,546.12
  6. Step 6: Final answer
    x = 7,181.98

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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.