Home / 12,089.07-18,138.80-6,546.38

Finding the Fourth Proportional to 12,089.07, 18,138.80 and 6,546.38

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Solution

The fourth proportional to 12,089.07, 18,138.80 and 6,546.38 is: 9,822.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,089.07 : 18,138.80 = 6,546.38 : x
  2. Step 2: Convert to fraction form
    12,089.07/18,138.80 = 6,546.38/x
  3. Step 3: Cross multiply
    12,089.07x = 18,138.80 × 6,546.38
  4. Step 4: Simplify right side
    12,089.07x = 118,743,403.22
  5. Step 5: Solve for x
    x = 118,743,403.22/12,089.07
  6. Step 6: Final answer
    x = 9,822.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.