Home / 18,143.64-27,220.14-5,664.06

Finding the Fourth Proportional to 18,143.64, 27,220.14 and 5,664.06

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Solution

The fourth proportional to 18,143.64, 27,220.14 and 5,664.06 is: 8,497.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,143.64 : 27,220.14 = 5,664.06 : x
  2. Step 2: Convert to fraction form
    18,143.64/27,220.14 = 5,664.06/x
  3. Step 3: Cross multiply
    18,143.64x = 27,220.14 × 5,664.06
  4. Step 4: Simplify right side
    18,143.64x = 154,176,506.17
  5. Step 5: Solve for x
    x = 154,176,506.17/18,143.64
  6. Step 6: Final answer
    x = 8,497.55

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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.