Home / 18,485.39-27,724-5,334.90

Finding the Fourth Proportional to 18,485.39, 27,724 and 5,334.90

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Solution

The fourth proportional to 18,485.39, 27,724 and 5,334.90 is: 8,001.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,485.39 : 27,724 = 5,334.90 : x
  2. Step 2: Convert to fraction form
    18,485.39/27,724 = 5,334.90/x
  3. Step 3: Cross multiply
    18,485.39x = 27,724 × 5,334.90
  4. Step 4: Simplify right side
    18,485.39x = 147,904,767.60
  5. Step 5: Solve for x
    x = 147,904,767.60/18,485.39
  6. Step 6: Final answer
    x = 8,001.17

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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.