Home / 11,134.11-16,698.54-5,215.07

Finding the Fourth Proportional to 11,134.11, 16,698.54 and 5,215.07

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Solution

The fourth proportional to 11,134.11, 16,698.54 and 5,215.07 is: 7,821.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,134.11 : 16,698.54 = 5,215.07 : x
  2. Step 2: Convert to fraction form
    11,134.11/16,698.54 = 5,215.07/x
  3. Step 3: Cross multiply
    11,134.11x = 16,698.54 × 5,215.07
  4. Step 4: Simplify right side
    11,134.11x = 87,083,958.47
  5. Step 5: Solve for x
    x = 87,083,958.47/11,134.11
  6. Step 6: Final answer
    x = 7,821.37

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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.