Home / 8,315.72-11,477.16-4,958.75

Finding the Fourth Proportional to 8,315.72, 11,477.16 and 4,958.75

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Solution

The fourth proportional to 8,315.72, 11,477.16 and 4,958.75 is: 6,843.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,315.72 : 11,477.16 = 4,958.75 : x
  2. Step 2: Convert to fraction form
    8,315.72/11,477.16 = 4,958.75/x
  3. Step 3: Cross multiply
    8,315.72x = 11,477.16 × 4,958.75
  4. Step 4: Simplify right side
    8,315.72x = 56,912,367.15
  5. Step 5: Solve for x
    x = 56,912,367.15/8,315.72
  6. Step 6: Final answer
    x = 6,843.95

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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.