Home / 18,271.64-27,407.41-7,170.56

Finding the Fourth Proportional to 18,271.64, 27,407.41 and 7,170.56

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Solution

The fourth proportional to 18,271.64, 27,407.41 and 7,170.56 is: 10,755.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,271.64 : 27,407.41 = 7,170.56 : x
  2. Step 2: Convert to fraction form
    18,271.64/27,407.41 = 7,170.56/x
  3. Step 3: Cross multiply
    18,271.64x = 27,407.41 × 7,170.56
  4. Step 4: Simplify right side
    18,271.64x = 196,526,391.40
  5. Step 5: Solve for x
    x = 196,526,391.40/18,271.64
  6. Step 6: Final answer
    x = 10,755.82

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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.