Home / 14,127.21-21,189.42-8,579.07

Finding the Fourth Proportional to 14,127.21, 21,189.42 and 8,579.07

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Solution

The fourth proportional to 14,127.21, 21,189.42 and 8,579.07 is: 12,867.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,127.21 : 21,189.42 = 8,579.07 : x
  2. Step 2: Convert to fraction form
    14,127.21/21,189.42 = 8,579.07/x
  3. Step 3: Cross multiply
    14,127.21x = 21,189.42 × 8,579.07
  4. Step 4: Simplify right side
    14,127.21x = 181,785,517.44
  5. Step 5: Solve for x
    x = 181,785,517.44/14,127.21
  6. Step 6: Final answer
    x = 12,867.76

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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.