Home / 8,760.45-13,140.77-2,917.05

Finding the Fourth Proportional to 8,760.45, 13,140.77 and 2,917.05

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Solution

The fourth proportional to 8,760.45, 13,140.77 and 2,917.05 is: 4,375.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,760.45 : 13,140.77 = 2,917.05 : x
  2. Step 2: Convert to fraction form
    8,760.45/13,140.77 = 2,917.05/x
  3. Step 3: Cross multiply
    8,760.45x = 13,140.77 × 2,917.05
  4. Step 4: Simplify right side
    8,760.45x = 38,332,283.13
  5. Step 5: Solve for x
    x = 38,332,283.13/8,760.45
  6. Step 6: Final answer
    x = 4,375.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.