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Finding the Fourth Proportional to 7,953.03, 11,930.90 and 3,275.57

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Solution

The fourth proportional to 7,953.03, 11,930.90 and 3,275.57 is: 4,913.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,953.03 : 11,930.90 = 3,275.57 : x
  2. Step 2: Convert to fraction form
    7,953.03/11,930.90 = 3,275.57/x
  3. Step 3: Cross multiply
    7,953.03x = 11,930.90 × 3,275.57
  4. Step 4: Simplify right side
    7,953.03x = 39,080,511.56
  5. Step 5: Solve for x
    x = 39,080,511.56/7,953.03
  6. Step 6: Final answer
    x = 4,913.91

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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.