Home / 8,690.06-13,034.91-2,116.28

Finding the Fourth Proportional to 8,690.06, 13,034.91 and 2,116.28

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Solution

The fourth proportional to 8,690.06, 13,034.91 and 2,116.28 is: 3,174.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,690.06 : 13,034.91 = 2,116.28 : x
  2. Step 2: Convert to fraction form
    8,690.06/13,034.91 = 2,116.28/x
  3. Step 3: Cross multiply
    8,690.06x = 13,034.91 × 2,116.28
  4. Step 4: Simplify right side
    8,690.06x = 27,585,519.33
  5. Step 5: Solve for x
    x = 27,585,519.33/8,690.06
  6. Step 6: Final answer
    x = 3,174.38

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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.