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Finding the Fourth Proportional to 8,751.26, 12,077.07 and 5,214.80

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Solution

The fourth proportional to 8,751.26, 12,077.07 and 5,214.80 is: 7,196.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,751.26 : 12,077.07 = 5,214.80 : x
  2. Step 2: Convert to fraction form
    8,751.26/12,077.07 = 5,214.80/x
  3. Step 3: Cross multiply
    8,751.26x = 12,077.07 × 5,214.80
  4. Step 4: Simplify right side
    8,751.26x = 62,979,515.27
  5. Step 5: Solve for x
    x = 62,979,515.27/8,751.26
  6. Step 6: Final answer
    x = 7,196.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.