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Finding the Fourth Proportional to 7,951.50, 11,918.52 and 3,562.92

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Solution

The fourth proportional to 7,951.50, 11,918.52 and 3,562.92 is: 5,340.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,951.50 : 11,918.52 = 3,562.92 : x
  2. Step 2: Convert to fraction form
    7,951.50/11,918.52 = 3,562.92/x
  3. Step 3: Cross multiply
    7,951.50x = 11,918.52 × 3,562.92
  4. Step 4: Simplify right side
    7,951.50x = 42,464,733.28
  5. Step 5: Solve for x
    x = 42,464,733.28/7,951.50
  6. Step 6: Final answer
    x = 5,340.47

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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.