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Finding the Fourth Proportional to 12,275.51, 18,414.97 and 4,375.70

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Solution

The fourth proportional to 12,275.51, 18,414.97 and 4,375.70 is: 6,564.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,275.51 : 18,414.97 = 4,375.70 : x
  2. Step 2: Convert to fraction form
    12,275.51/18,414.97 = 4,375.70/x
  3. Step 3: Cross multiply
    12,275.51x = 18,414.97 × 4,375.70
  4. Step 4: Simplify right side
    12,275.51x = 80,578,316.31
  5. Step 5: Solve for x
    x = 80,578,316.31/12,275.51
  6. Step 6: Final answer
    x = 6,564.15

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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.