Home / 18,212.11-25,147.88-12,263.47

Finding the Fourth Proportional to 18,212.11, 25,147.88 and 12,263.47

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Solution

The fourth proportional to 18,212.11, 25,147.88 and 12,263.47 is: 16,933.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,212.11 : 25,147.88 = 12,263.47 : x
  2. Step 2: Convert to fraction form
    18,212.11/25,147.88 = 12,263.47/x
  3. Step 3: Cross multiply
    18,212.11x = 25,147.88 × 12,263.47
  4. Step 4: Simplify right side
    18,212.11x = 308,400,271.94
  5. Step 5: Solve for x
    x = 308,400,271.94/18,212.11
  6. Step 6: Final answer
    x = 16,933.80

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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.