Home / 18,118.71-27,177.26-6,431.76

Finding the Fourth Proportional to 18,118.71, 27,177.26 and 6,431.76

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Solution

The fourth proportional to 18,118.71, 27,177.26 and 6,431.76 is: 9,647.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,118.71 : 27,177.26 = 6,431.76 : x
  2. Step 2: Convert to fraction form
    18,118.71/27,177.26 = 6,431.76/x
  3. Step 3: Cross multiply
    18,118.71x = 27,177.26 × 6,431.76
  4. Step 4: Simplify right side
    18,118.71x = 174,797,581.62
  5. Step 5: Solve for x
    x = 174,797,581.62/18,118.71
  6. Step 6: Final answer
    x = 9,647.35

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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.