Home / 7,977.72-11,007.96-4,440.84

Finding the Fourth Proportional to 7,977.72, 11,007.96 and 4,440.84

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Solution

The fourth proportional to 7,977.72, 11,007.96 and 4,440.84 is: 6,127.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,977.72 : 11,007.96 = 4,440.84 : x
  2. Step 2: Convert to fraction form
    7,977.72/11,007.96 = 4,440.84/x
  3. Step 3: Cross multiply
    7,977.72x = 11,007.96 × 4,440.84
  4. Step 4: Simplify right side
    7,977.72x = 48,884,589.09
  5. Step 5: Solve for x
    x = 48,884,589.09/7,977.72
  6. Step 6: Final answer
    x = 6,127.64

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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.