Home / 8,718.15-13,082.79-3,170.96

Finding the Fourth Proportional to 8,718.15, 13,082.79 and 3,170.96

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Solution

The fourth proportional to 8,718.15, 13,082.79 and 3,170.96 is: 4,758.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,718.15 : 13,082.79 = 3,170.96 : x
  2. Step 2: Convert to fraction form
    8,718.15/13,082.79 = 3,170.96/x
  3. Step 3: Cross multiply
    8,718.15x = 13,082.79 × 3,170.96
  4. Step 4: Simplify right side
    8,718.15x = 41,485,036.49
  5. Step 5: Solve for x
    x = 41,485,036.49/8,718.15
  6. Step 6: Final answer
    x = 4,758.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.