Home / 12,265.44-16,917.18-7,785.30

Finding the Fourth Proportional to 12,265.44, 16,917.18 and 7,785.30

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Solution

The fourth proportional to 12,265.44, 16,917.18 and 7,785.30 is: 10,737.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,265.44 : 16,917.18 = 7,785.30 : x
  2. Step 2: Convert to fraction form
    12,265.44/16,917.18 = 7,785.30/x
  3. Step 3: Cross multiply
    12,265.44x = 16,917.18 × 7,785.30
  4. Step 4: Simplify right side
    12,265.44x = 131,705,321.45
  5. Step 5: Solve for x
    x = 131,705,321.45/12,265.44
  6. Step 6: Final answer
    x = 10,737.92

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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.