Home / 18,144.56-27,216.82-6,457.88

Finding the Fourth Proportional to 18,144.56, 27,216.82 and 6,457.88

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Solution

The fourth proportional to 18,144.56, 27,216.82 and 6,457.88 is: 9,686.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,144.56 : 27,216.82 = 6,457.88 : x
  2. Step 2: Convert to fraction form
    18,144.56/27,216.82 = 6,457.88/x
  3. Step 3: Cross multiply
    18,144.56x = 27,216.82 × 6,457.88
  4. Step 4: Simplify right side
    18,144.56x = 175,762,957.54
  5. Step 5: Solve for x
    x = 175,762,957.54/18,144.56
  6. Step 6: Final answer
    x = 9,686.81

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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.