Home / 8,318.26-11,477.89-4,780.79

Finding the Fourth Proportional to 8,318.26, 11,477.89 and 4,780.79

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Solution

The fourth proportional to 8,318.26, 11,477.89 and 4,780.79 is: 6,596.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,318.26 : 11,477.89 = 4,780.79 : x
  2. Step 2: Convert to fraction form
    8,318.26/11,477.89 = 4,780.79/x
  3. Step 3: Cross multiply
    8,318.26x = 11,477.89 × 4,780.79
  4. Step 4: Simplify right side
    8,318.26x = 54,873,312.39
  5. Step 5: Solve for x
    x = 54,873,312.39/8,318.26
  6. Step 6: Final answer
    x = 6,596.73

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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.