Home / 18,259.36-27,389.08-7,171.28

Finding the Fourth Proportional to 18,259.36, 27,389.08 and 7,171.28

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Solution

The fourth proportional to 18,259.36, 27,389.08 and 7,171.28 is: 10,756.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,259.36 : 27,389.08 = 7,171.28 : x
  2. Step 2: Convert to fraction form
    18,259.36/27,389.08 = 7,171.28/x
  3. Step 3: Cross multiply
    18,259.36x = 27,389.08 × 7,171.28
  4. Step 4: Simplify right side
    18,259.36x = 196,414,761.62
  5. Step 5: Solve for x
    x = 196,414,761.62/18,259.36
  6. Step 6: Final answer
    x = 10,756.94

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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.