Home / 7,939.20-11,904.96-4,653.36

Finding the Fourth Proportional to 7,939.20, 11,904.96 and 4,653.36

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Solution

The fourth proportional to 7,939.20, 11,904.96 and 4,653.36 is: 6,977.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,939.20 : 11,904.96 = 4,653.36 : x
  2. Step 2: Convert to fraction form
    7,939.20/11,904.96 = 4,653.36/x
  3. Step 3: Cross multiply
    7,939.20x = 11,904.96 × 4,653.36
  4. Step 4: Simplify right side
    7,939.20x = 55,398,064.67
  5. Step 5: Solve for x
    x = 55,398,064.67/7,939.20
  6. Step 6: Final answer
    x = 6,977.79

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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.