Home / 18,270.54-27,402.71-5,119.88

Finding the Fourth Proportional to 18,270.54, 27,402.71 and 5,119.88

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Solution

The fourth proportional to 18,270.54, 27,402.71 and 5,119.88 is: 7,678.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,270.54 : 27,402.71 = 5,119.88 : x
  2. Step 2: Convert to fraction form
    18,270.54/27,402.71 = 5,119.88/x
  3. Step 3: Cross multiply
    18,270.54x = 27,402.71 × 5,119.88
  4. Step 4: Simplify right side
    18,270.54x = 140,298,424.26
  5. Step 5: Solve for x
    x = 140,298,424.26/18,270.54
  6. Step 6: Final answer
    x = 7,678.94

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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.