Home / 13,408.92-18,501.48-7,743.65

Finding the Fourth Proportional to 13,408.92, 18,501.48 and 7,743.65

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Solution

The fourth proportional to 13,408.92, 18,501.48 and 7,743.65 is: 10,684.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,408.92 : 18,501.48 = 7,743.65 : x
  2. Step 2: Convert to fraction form
    13,408.92/18,501.48 = 7,743.65/x
  3. Step 3: Cross multiply
    13,408.92x = 18,501.48 × 7,743.65
  4. Step 4: Simplify right side
    13,408.92x = 143,268,893.09
  5. Step 5: Solve for x
    x = 143,268,893.09/13,408.92
  6. Step 6: Final answer
    x = 10,684.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.