Home / 18,389.36-27,584.92-5,242.64

Finding the Fourth Proportional to 18,389.36, 27,584.92 and 5,242.64

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Solution

The fourth proportional to 18,389.36, 27,584.92 and 5,242.64 is: 7,864.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,389.36 : 27,584.92 = 5,242.64 : x
  2. Step 2: Convert to fraction form
    18,389.36/27,584.92 = 5,242.64/x
  3. Step 3: Cross multiply
    18,389.36x = 27,584.92 × 5,242.64
  4. Step 4: Simplify right side
    18,389.36x = 144,617,804.99
  5. Step 5: Solve for x
    x = 144,617,804.99/18,389.36
  6. Step 6: Final answer
    x = 7,864.21

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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.