Home / 18,322.18-27,480.16-5,171.47

Finding the Fourth Proportional to 18,322.18, 27,480.16 and 5,171.47

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Solution

The fourth proportional to 18,322.18, 27,480.16 and 5,171.47 is: 7,756.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,322.18 : 27,480.16 = 5,171.47 : x
  2. Step 2: Convert to fraction form
    18,322.18/27,480.16 = 5,171.47/x
  3. Step 3: Cross multiply
    18,322.18x = 27,480.16 × 5,171.47
  4. Step 4: Simplify right side
    18,322.18x = 142,112,823.04
  5. Step 5: Solve for x
    x = 142,112,823.04/18,322.18
  6. Step 6: Final answer
    x = 7,756.33

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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.