Home / 18,271.82-27,405.56-5,125.24

Finding the Fourth Proportional to 18,271.82, 27,405.56 and 5,125.24

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Solution

The fourth proportional to 18,271.82, 27,405.56 and 5,125.24 is: 7,687.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,271.82 : 27,405.56 = 5,125.24 : x
  2. Step 2: Convert to fraction form
    18,271.82/27,405.56 = 5,125.24/x
  3. Step 3: Cross multiply
    18,271.82x = 27,405.56 × 5,125.24
  4. Step 4: Simplify right side
    18,271.82x = 140,460,072.33
  5. Step 5: Solve for x
    x = 140,460,072.33/18,271.82
  6. Step 6: Final answer
    x = 7,687.25

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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.