Home / 18,271.20-27,390-6,581.56

Finding the Fourth Proportional to 18,271.20, 27,390 and 6,581.56

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Solution

The fourth proportional to 18,271.20, 27,390 and 6,581.56 is: 9,866.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,271.20 : 27,390 = 6,581.56 : x
  2. Step 2: Convert to fraction form
    18,271.20/27,390 = 6,581.56/x
  3. Step 3: Cross multiply
    18,271.20x = 27,390 × 6,581.56
  4. Step 4: Simplify right side
    18,271.20x = 180,268,928.40
  5. Step 5: Solve for x
    x = 180,268,928.40/18,271.20
  6. Step 6: Final answer
    x = 9,866.29

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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.