Home / 13,645.34-20,468.01-3,784.62

Finding the Fourth Proportional to 13,645.34, 20,468.01 and 3,784.62

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Solution

The fourth proportional to 13,645.34, 20,468.01 and 3,784.62 is: 5,676.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,645.34 : 20,468.01 = 3,784.62 : x
  2. Step 2: Convert to fraction form
    13,645.34/20,468.01 = 3,784.62/x
  3. Step 3: Cross multiply
    13,645.34x = 20,468.01 × 3,784.62
  4. Step 4: Simplify right side
    13,645.34x = 77,463,700.64
  5. Step 5: Solve for x
    x = 77,463,700.64/13,645.34
  6. Step 6: Final answer
    x = 5,676.93

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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.