Home / 13,451.89-18,556.02-8,072.95

Finding the Fourth Proportional to 13,451.89, 18,556.02 and 8,072.95

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Solution

The fourth proportional to 13,451.89, 18,556.02 and 8,072.95 is: 11,136.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,451.89 : 18,556.02 = 8,072.95 : x
  2. Step 2: Convert to fraction form
    13,451.89/18,556.02 = 8,072.95/x
  3. Step 3: Cross multiply
    13,451.89x = 18,556.02 × 8,072.95
  4. Step 4: Simplify right side
    13,451.89x = 149,801,821.66
  5. Step 5: Solve for x
    x = 149,801,821.66/13,451.89
  6. Step 6: Final answer
    x = 11,136.12

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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.