Home / 14,418.96-19,898.17-8,131.34

Finding the Fourth Proportional to 14,418.96, 19,898.17 and 8,131.34

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Solution

The fourth proportional to 14,418.96, 19,898.17 and 8,131.34 is: 11,221.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,418.96 : 19,898.17 = 8,131.34 : x
  2. Step 2: Convert to fraction form
    14,418.96/19,898.17 = 8,131.34/x
  3. Step 3: Cross multiply
    14,418.96x = 19,898.17 × 8,131.34
  4. Step 4: Simplify right side
    14,418.96x = 161,798,686.16
  5. Step 5: Solve for x
    x = 161,798,686.16/14,418.96
  6. Step 6: Final answer
    x = 11,221.25

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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.