Home / 14,399.25-19,871.99-8,111.63

Finding the Fourth Proportional to 14,399.25, 19,871.99 and 8,111.63

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Solution

The fourth proportional to 14,399.25, 19,871.99 and 8,111.63 is: 11,194.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,399.25 : 19,871.99 = 8,111.63 : x
  2. Step 2: Convert to fraction form
    14,399.25/19,871.99 = 8,111.63/x
  3. Step 3: Cross multiply
    14,399.25x = 19,871.99 × 8,111.63
  4. Step 4: Simplify right side
    14,399.25x = 161,194,090.33
  5. Step 5: Solve for x
    x = 161,194,090.33/14,399.25
  6. Step 6: Final answer
    x = 11,194.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.