Home / 11,758.60-16,227.72-7,772.80

Finding the Fourth Proportional to 11,758.60, 16,227.72 and 7,772.80

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Solution

The fourth proportional to 11,758.60, 16,227.72 and 7,772.80 is: 10,727.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,758.60 : 16,227.72 = 7,772.80 : x
  2. Step 2: Convert to fraction form
    11,758.60/16,227.72 = 7,772.80/x
  3. Step 3: Cross multiply
    11,758.60x = 16,227.72 × 7,772.80
  4. Step 4: Simplify right side
    11,758.60x = 126,134,822.02
  5. Step 5: Solve for x
    x = 126,134,822.02/11,758.60
  6. Step 6: Final answer
    x = 10,727.03

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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.