Home / 12,173.26-18,246.78-5,151.64

Finding the Fourth Proportional to 12,173.26, 18,246.78 and 5,151.64

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Solution

The fourth proportional to 12,173.26, 18,246.78 and 5,151.64 is: 7,721.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,173.26 : 18,246.78 = 5,151.64 : x
  2. Step 2: Convert to fraction form
    12,173.26/18,246.78 = 5,151.64/x
  3. Step 3: Cross multiply
    12,173.26x = 18,246.78 × 5,151.64
  4. Step 4: Simplify right side
    12,173.26x = 94,000,841.72
  5. Step 5: Solve for x
    x = 94,000,841.72/12,173.26
  6. Step 6: Final answer
    x = 7,721.91

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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.