Home / 11,811.90-17,717.88-3,492.06

Finding the Fourth Proportional to 11,811.90, 17,717.88 and 3,492.06

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Solution

The fourth proportional to 11,811.90, 17,717.88 and 3,492.06 is: 5,238.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,811.90 : 17,717.88 = 3,492.06 : x
  2. Step 2: Convert to fraction form
    11,811.90/17,717.88 = 3,492.06/x
  3. Step 3: Cross multiply
    11,811.90x = 17,717.88 × 3,492.06
  4. Step 4: Simplify right side
    11,811.90x = 61,871,900.03
  5. Step 5: Solve for x
    x = 61,871,900.03/11,811.90
  6. Step 6: Final answer
    x = 5,238.10

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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.