Home / 11,780.98-16,257.39-6,475.78

Finding the Fourth Proportional to 11,780.98, 16,257.39 and 6,475.78

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Solution

The fourth proportional to 11,780.98, 16,257.39 and 6,475.78 is: 8,936.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,780.98 : 16,257.39 = 6,475.78 : x
  2. Step 2: Convert to fraction form
    11,780.98/16,257.39 = 6,475.78/x
  3. Step 3: Cross multiply
    11,780.98x = 16,257.39 × 6,475.78
  4. Step 4: Simplify right side
    11,780.98x = 105,279,281.01
  5. Step 5: Solve for x
    x = 105,279,281.01/11,780.98
  6. Step 6: Final answer
    x = 8,936.38

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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.