Home / 13,115.35-19,673.16-10,499.48

Finding the Fourth Proportional to 13,115.35, 19,673.16 and 10,499.48

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Solution

The fourth proportional to 13,115.35, 19,673.16 and 10,499.48 is: 15,749.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,115.35 : 19,673.16 = 10,499.48 : x
  2. Step 2: Convert to fraction form
    13,115.35/19,673.16 = 10,499.48/x
  3. Step 3: Cross multiply
    13,115.35x = 19,673.16 × 10,499.48
  4. Step 4: Simplify right side
    13,115.35x = 206,557,949.96
  5. Step 5: Solve for x
    x = 206,557,949.96/13,115.35
  6. Step 6: Final answer
    x = 15,749.33

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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.