Home / 7,943.10-10,961.31-4,917.42

Finding the Fourth Proportional to 7,943.10, 10,961.31 and 4,917.42

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Solution

The fourth proportional to 7,943.10, 10,961.31 and 4,917.42 is: 6,785.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,943.10 : 10,961.31 = 4,917.42 : x
  2. Step 2: Convert to fraction form
    7,943.10/10,961.31 = 4,917.42/x
  3. Step 3: Cross multiply
    7,943.10x = 10,961.31 × 4,917.42
  4. Step 4: Simplify right side
    7,943.10x = 53,901,365.02
  5. Step 5: Solve for x
    x = 53,901,365.02/7,943.10
  6. Step 6: Final answer
    x = 6,785.94

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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.