Home / 14,885.97-20,542.89-8,172.23

Finding the Fourth Proportional to 14,885.97, 20,542.89 and 8,172.23

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Solution

The fourth proportional to 14,885.97, 20,542.89 and 8,172.23 is: 11,277.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,885.97 : 20,542.89 = 8,172.23 : x
  2. Step 2: Convert to fraction form
    14,885.97/20,542.89 = 8,172.23/x
  3. Step 3: Cross multiply
    14,885.97x = 20,542.89 × 8,172.23
  4. Step 4: Simplify right side
    14,885.97x = 167,881,221.94
  5. Step 5: Solve for x
    x = 167,881,221.94/14,885.97
  6. Step 6: Final answer
    x = 11,277.82

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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.