Home / 11,785.70-16,264.60-6,480.88

Finding the Fourth Proportional to 11,785.70, 16,264.60 and 6,480.88

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Solution

The fourth proportional to 11,785.70, 16,264.60 and 6,480.88 is: 8,943.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,785.70 : 16,264.60 = 6,480.88 : x
  2. Step 2: Convert to fraction form
    11,785.70/16,264.60 = 6,480.88/x
  3. Step 3: Cross multiply
    11,785.70x = 16,264.60 × 6,480.88
  4. Step 4: Simplify right side
    11,785.70x = 105,408,863.98
  5. Step 5: Solve for x
    x = 105,408,863.98/11,785.70
  6. Step 6: Final answer
    x = 8,943.79

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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.