Home / 8,376.12-11,559.18-4,839.64

Finding the Fourth Proportional to 8,376.12, 11,559.18 and 4,839.64

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Solution

The fourth proportional to 8,376.12, 11,559.18 and 4,839.64 is: 6,678.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,376.12 : 11,559.18 = 4,839.64 : x
  2. Step 2: Convert to fraction form
    8,376.12/11,559.18 = 4,839.64/x
  3. Step 3: Cross multiply
    8,376.12x = 11,559.18 × 4,839.64
  4. Step 4: Simplify right side
    8,376.12x = 55,942,269.90
  5. Step 5: Solve for x
    x = 55,942,269.90/8,376.12
  6. Step 6: Final answer
    x = 6,678.78

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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.