Home / 13,813.56-20,703.72-5,043.72

Finding the Fourth Proportional to 13,813.56, 20,703.72 and 5,043.72

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Solution

The fourth proportional to 13,813.56, 20,703.72 and 5,043.72 is: 7,559.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,813.56 : 20,703.72 = 5,043.72 : x
  2. Step 2: Convert to fraction form
    13,813.56/20,703.72 = 5,043.72/x
  3. Step 3: Cross multiply
    13,813.56x = 20,703.72 × 5,043.72
  4. Step 4: Simplify right side
    13,813.56x = 104,423,766.64
  5. Step 5: Solve for x
    x = 104,423,766.64/13,813.56
  6. Step 6: Final answer
    x = 7,559.51

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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.