Home / 14,100.68-19,457.42-8,131.39

Finding the Fourth Proportional to 14,100.68, 19,457.42 and 8,131.39

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Solution

The fourth proportional to 14,100.68, 19,457.42 and 8,131.39 is: 11,220.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,100.68 : 19,457.42 = 8,131.39 : x
  2. Step 2: Convert to fraction form
    14,100.68/19,457.42 = 8,131.39/x
  3. Step 3: Cross multiply
    14,100.68x = 19,457.42 × 8,131.39
  4. Step 4: Simplify right side
    14,100.68x = 158,215,781.11
  5. Step 5: Solve for x
    x = 158,215,781.11/14,100.68
  6. Step 6: Final answer
    x = 11,220.43

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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.