Home / 11,780.88-16,257.84-6,475.92

Finding the Fourth Proportional to 11,780.88, 16,257.84 and 6,475.92

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Solution

The fourth proportional to 11,780.88, 16,257.84 and 6,475.92 is: 8,936.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,780.88 : 16,257.84 = 6,475.92 : x
  2. Step 2: Convert to fraction form
    11,780.88/16,257.84 = 6,475.92/x
  3. Step 3: Cross multiply
    11,780.88x = 16,257.84 × 6,475.92
  4. Step 4: Simplify right side
    11,780.88x = 105,284,471.21
  5. Step 5: Solve for x
    x = 105,284,471.21/11,780.88
  6. Step 6: Final answer
    x = 8,936.89

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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.