Home / 11,908.90-16,434.26-6,603.58

Finding the Fourth Proportional to 11,908.90, 16,434.26 and 6,603.58

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Solution

The fourth proportional to 11,908.90, 16,434.26 and 6,603.58 is: 9,112.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,908.90 : 16,434.26 = 6,603.58 : x
  2. Step 2: Convert to fraction form
    11,908.90/16,434.26 = 6,603.58/x
  3. Step 3: Cross multiply
    11,908.90x = 16,434.26 × 6,603.58
  4. Step 4: Simplify right side
    11,908.90x = 108,524,917.63
  5. Step 5: Solve for x
    x = 108,524,917.63/11,908.90
  6. Step 6: Final answer
    x = 9,112.93

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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.