Home / 13,585.22-20,377.42-5,579.71

Finding the Fourth Proportional to 13,585.22, 20,377.42 and 5,579.71

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Solution

The fourth proportional to 13,585.22, 20,377.42 and 5,579.71 is: 8,369.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,585.22 : 20,377.42 = 5,579.71 : x
  2. Step 2: Convert to fraction form
    13,585.22/20,377.42 = 5,579.71/x
  3. Step 3: Cross multiply
    13,585.22x = 20,377.42 × 5,579.71
  4. Step 4: Simplify right side
    13,585.22x = 113,699,992.40
  5. Step 5: Solve for x
    x = 113,699,992.40/13,585.22
  6. Step 6: Final answer
    x = 8,369.39

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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.