Home / 8,170.72-11,277.51-4,986.65

Finding the Fourth Proportional to 8,170.72, 11,277.51 and 4,986.65

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Solution

The fourth proportional to 8,170.72, 11,277.51 and 4,986.65 is: 6,882.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,170.72 : 11,277.51 = 4,986.65 : x
  2. Step 2: Convert to fraction form
    8,170.72/11,277.51 = 4,986.65/x
  3. Step 3: Cross multiply
    8,170.72x = 11,277.51 × 4,986.65
  4. Step 4: Simplify right side
    8,170.72x = 56,236,960.77
  5. Step 5: Solve for x
    x = 56,236,960.77/8,170.72
  6. Step 6: Final answer
    x = 6,882.75

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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.