Home / 11,893.19-16,412.72-7,176.56

Finding the Fourth Proportional to 11,893.19, 16,412.72 and 7,176.56

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Solution

The fourth proportional to 11,893.19, 16,412.72 and 7,176.56 is: 9,903.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,893.19 : 16,412.72 = 7,176.56 : x
  2. Step 2: Convert to fraction form
    11,893.19/16,412.72 = 7,176.56/x
  3. Step 3: Cross multiply
    11,893.19x = 16,412.72 × 7,176.56
  4. Step 4: Simplify right side
    11,893.19x = 117,786,874.99
  5. Step 5: Solve for x
    x = 117,786,874.99/11,893.19
  6. Step 6: Final answer
    x = 9,903.72

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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.