Home / 13,820.60-20,736.30-5,056.20

Finding the Fourth Proportional to 13,820.60, 20,736.30 and 5,056.20

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Solution

The fourth proportional to 13,820.60, 20,736.30 and 5,056.20 is: 7,586.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,820.60 : 20,736.30 = 5,056.20 : x
  2. Step 2: Convert to fraction form
    13,820.60/20,736.30 = 5,056.20/x
  3. Step 3: Cross multiply
    13,820.60x = 20,736.30 × 5,056.20
  4. Step 4: Simplify right side
    13,820.60x = 104,846,880.06
  5. Step 5: Solve for x
    x = 104,846,880.06/13,820.60
  6. Step 6: Final answer
    x = 7,586.28

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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.