Home / 18,132.07-27,198.09-6,445.75

Finding the Fourth Proportional to 18,132.07, 27,198.09 and 6,445.75

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Solution

The fourth proportional to 18,132.07, 27,198.09 and 6,445.75 is: 9,668.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,132.07 : 27,198.09 = 6,445.75 : x
  2. Step 2: Convert to fraction form
    18,132.07/27,198.09 = 6,445.75/x
  3. Step 3: Cross multiply
    18,132.07x = 27,198.09 × 6,445.75
  4. Step 4: Simplify right side
    18,132.07x = 175,312,088.62
  5. Step 5: Solve for x
    x = 175,312,088.62/18,132.07
  6. Step 6: Final answer
    x = 9,668.62

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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.