Home / 13,508.31-20,257.04-5,605.44

Finding the Fourth Proportional to 13,508.31, 20,257.04 and 5,605.44

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Solution

The fourth proportional to 13,508.31, 20,257.04 and 5,605.44 is: 8,405.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,508.31 : 20,257.04 = 5,605.44 : x
  2. Step 2: Convert to fraction form
    13,508.31/20,257.04 = 5,605.44/x
  3. Step 3: Cross multiply
    13,508.31x = 20,257.04 × 5,605.44
  4. Step 4: Simplify right side
    13,508.31x = 113,549,622.30
  5. Step 5: Solve for x
    x = 113,549,622.30/13,508.31
  6. Step 6: Final answer
    x = 8,405.91

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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.