Home / 9,115.52-13,673.70-3,917.76

Finding the Fourth Proportional to 9,115.52, 13,673.70 and 3,917.76

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Solution

The fourth proportional to 9,115.52, 13,673.70 and 3,917.76 is: 5,876.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,115.52 : 13,673.70 = 3,917.76 : x
  2. Step 2: Convert to fraction form
    9,115.52/13,673.70 = 3,917.76/x
  3. Step 3: Cross multiply
    9,115.52x = 13,673.70 × 3,917.76
  4. Step 4: Simplify right side
    9,115.52x = 53,570,274.91
  5. Step 5: Solve for x
    x = 53,570,274.91/9,115.52
  6. Step 6: Final answer
    x = 5,876.82

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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.