Home / 13,911.92-19,198.34-7,538.54

Finding the Fourth Proportional to 13,911.92, 19,198.34 and 7,538.54

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Solution

The fourth proportional to 13,911.92, 19,198.34 and 7,538.54 is: 10,403.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,911.92 : 19,198.34 = 7,538.54 : x
  2. Step 2: Convert to fraction form
    13,911.92/19,198.34 = 7,538.54/x
  3. Step 3: Cross multiply
    13,911.92x = 19,198.34 × 7,538.54
  4. Step 4: Simplify right side
    13,911.92x = 144,727,320.34
  5. Step 5: Solve for x
    x = 144,727,320.34/13,911.92
  6. Step 6: Final answer
    x = 10,403.12

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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.