Home / 11,814.09-17,686.58-7,165.77

Finding the Fourth Proportional to 11,814.09, 17,686.58 and 7,165.77

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Solution

The fourth proportional to 11,814.09, 17,686.58 and 7,165.77 is: 10,727.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,814.09 : 17,686.58 = 7,165.77 : x
  2. Step 2: Convert to fraction form
    11,814.09/17,686.58 = 7,165.77/x
  3. Step 3: Cross multiply
    11,814.09x = 17,686.58 × 7,165.77
  4. Step 4: Simplify right side
    11,814.09x = 126,737,928.54
  5. Step 5: Solve for x
    x = 126,737,928.54/11,814.09
  6. Step 6: Final answer
    x = 10,727.69

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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.