Home / 11,774.19-17,661.29-3,980.91

Finding the Fourth Proportional to 11,774.19, 17,661.29 and 3,980.91

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Solution

The fourth proportional to 11,774.19, 17,661.29 and 3,980.91 is: 5,971.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,774.19 : 17,661.29 = 3,980.91 : x
  2. Step 2: Convert to fraction form
    11,774.19/17,661.29 = 3,980.91/x
  3. Step 3: Cross multiply
    11,774.19x = 17,661.29 × 3,980.91
  4. Step 4: Simplify right side
    11,774.19x = 70,307,986.07
  5. Step 5: Solve for x
    x = 70,307,986.07/11,774.19
  6. Step 6: Final answer
    x = 5,971.37

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Similar ratio
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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.