Home / 18,082.71-27,141.60-8,729.33

Finding the Fourth Proportional to 18,082.71, 27,141.60 and 8,729.33

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Solution

The fourth proportional to 18,082.71, 27,141.60 and 8,729.33 is: 13,102.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,082.71 : 27,141.60 = 8,729.33 : x
  2. Step 2: Convert to fraction form
    18,082.71/27,141.60 = 8,729.33/x
  3. Step 3: Cross multiply
    18,082.71x = 27,141.60 × 8,729.33
  4. Step 4: Simplify right side
    18,082.71x = 236,927,847.42
  5. Step 5: Solve for x
    x = 236,927,847.42/18,082.71
  6. Step 6: Final answer
    x = 13,102.45

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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.