Home / 11,389.28-17,085.54-3,992.04

Finding the Fourth Proportional to 11,389.28, 17,085.54 and 3,992.04

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Solution

The fourth proportional to 11,389.28, 17,085.54 and 3,992.04 is: 5,988.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,389.28 : 17,085.54 = 3,992.04 : x
  2. Step 2: Convert to fraction form
    11,389.28/17,085.54 = 3,992.04/x
  3. Step 3: Cross multiply
    11,389.28x = 17,085.54 × 3,992.04
  4. Step 4: Simplify right side
    11,389.28x = 68,206,159.10
  5. Step 5: Solve for x
    x = 68,206,159.10/11,389.28
  6. Step 6: Final answer
    x = 5,988.63

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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.