Home / 13,505.58-20,259-4,145.22

Finding the Fourth Proportional to 13,505.58, 20,259 and 4,145.22

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Solution

The fourth proportional to 13,505.58, 20,259 and 4,145.22 is: 6,218.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,505.58 : 20,259 = 4,145.22 : x
  2. Step 2: Convert to fraction form
    13,505.58/20,259 = 4,145.22/x
  3. Step 3: Cross multiply
    13,505.58x = 20,259 × 4,145.22
  4. Step 4: Simplify right side
    13,505.58x = 83,978,011.98
  5. Step 5: Solve for x
    x = 83,978,011.98/13,505.58
  6. Step 6: Final answer
    x = 6,218.02

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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.