Home / 11,971.19-17,956.76-3,206.11

Finding the Fourth Proportional to 11,971.19, 17,956.76 and 3,206.11

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Solution

The fourth proportional to 11,971.19, 17,956.76 and 3,206.11 is: 4,809.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,971.19 : 17,956.76 = 3,206.11 : x
  2. Step 2: Convert to fraction form
    11,971.19/17,956.76 = 3,206.11/x
  3. Step 3: Cross multiply
    11,971.19x = 17,956.76 × 3,206.11
  4. Step 4: Simplify right side
    11,971.19x = 57,571,347.80
  5. Step 5: Solve for x
    x = 57,571,347.80/11,971.19
  6. Step 6: Final answer
    x = 4,809.16

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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.