Home / 18,212.06-25,131.95-10,145.52

Finding the Fourth Proportional to 18,212.06, 25,131.95 and 10,145.52

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Solution

The fourth proportional to 18,212.06, 25,131.95 and 10,145.52 is: 14,000.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,212.06 : 25,131.95 = 10,145.52 : x
  2. Step 2: Convert to fraction form
    18,212.06/25,131.95 = 10,145.52/x
  3. Step 3: Cross multiply
    18,212.06x = 25,131.95 × 10,145.52
  4. Step 4: Simplify right side
    18,212.06x = 254,976,745.75
  5. Step 5: Solve for x
    x = 254,976,745.75/18,212.06
  6. Step 6: Final answer
    x = 14,000.44

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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.