Home / 13,380.53-20,059.83-5,055.81

Finding the Fourth Proportional to 13,380.53, 20,059.83 and 5,055.81

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Solution

The fourth proportional to 13,380.53, 20,059.83 and 5,055.81 is: 7,579.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,380.53 : 20,059.83 = 5,055.81 : x
  2. Step 2: Convert to fraction form
    13,380.53/20,059.83 = 5,055.81/x
  3. Step 3: Cross multiply
    13,380.53x = 20,059.83 × 5,055.81
  4. Step 4: Simplify right side
    13,380.53x = 101,418,689.11
  5. Step 5: Solve for x
    x = 101,418,689.11/13,380.53
  6. Step 6: Final answer
    x = 7,579.57

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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.