Home / 13,477.39-20,215.41-5,161.39

Finding the Fourth Proportional to 13,477.39, 20,215.41 and 5,161.39

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Solution

The fourth proportional to 13,477.39, 20,215.41 and 5,161.39 is: 7,741.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,477.39 : 20,215.41 = 5,161.39 : x
  2. Step 2: Convert to fraction form
    13,477.39/20,215.41 = 5,161.39/x
  3. Step 3: Cross multiply
    13,477.39x = 20,215.41 × 5,161.39
  4. Step 4: Simplify right side
    13,477.39x = 104,339,615.02
  5. Step 5: Solve for x
    x = 104,339,615.02/13,477.39
  6. Step 6: Final answer
    x = 7,741.83

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1.5x scale

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.