Home / 8,339.27-12,511.80-5,221.58

Finding the Fourth Proportional to 8,339.27, 12,511.80 and 5,221.58

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Solution

The fourth proportional to 8,339.27, 12,511.80 and 5,221.58 is: 7,834.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,339.27 : 12,511.80 = 5,221.58 : x
  2. Step 2: Convert to fraction form
    8,339.27/12,511.80 = 5,221.58/x
  3. Step 3: Cross multiply
    8,339.27x = 12,511.80 × 5,221.58
  4. Step 4: Simplify right side
    8,339.27x = 65,331,302.09
  5. Step 5: Solve for x
    x = 65,331,302.09/8,339.27
  6. Step 6: Final answer
    x = 7,834.18

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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.