Home / 11,389.12-17,084.20-3,491.06

Finding the Fourth Proportional to 11,389.12, 17,084.20 and 3,491.06

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Solution

The fourth proportional to 11,389.12, 17,084.20 and 3,491.06 is: 5,236.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,389.12 : 17,084.20 = 3,491.06 : x
  2. Step 2: Convert to fraction form
    11,389.12/17,084.20 = 3,491.06/x
  3. Step 3: Cross multiply
    11,389.12x = 17,084.20 × 3,491.06
  4. Step 4: Simplify right side
    11,389.12x = 59,642,001.23
  5. Step 5: Solve for x
    x = 59,642,001.23/11,389.12
  6. Step 6: Final answer
    x = 5,236.75

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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.