Home / 11,812.19-17,722.59-5,489.99

Finding the Fourth Proportional to 11,812.19, 17,722.59 and 5,489.99

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Solution

The fourth proportional to 11,812.19, 17,722.59 and 5,489.99 is: 8,236.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,812.19 : 17,722.59 = 5,489.99 : x
  2. Step 2: Convert to fraction form
    11,812.19/17,722.59 = 5,489.99/x
  3. Step 3: Cross multiply
    11,812.19x = 17,722.59 × 5,489.99
  4. Step 4: Simplify right side
    11,812.19x = 97,296,841.87
  5. Step 5: Solve for x
    x = 97,296,841.87/11,812.19
  6. Step 6: Final answer
    x = 8,236.99

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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.