Home / 8,070.39-12,098.31-3,136.61

Finding the Fourth Proportional to 8,070.39, 12,098.31 and 3,136.61

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Solution

The fourth proportional to 8,070.39, 12,098.31 and 3,136.61 is: 4,702.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,070.39 : 12,098.31 = 3,136.61 : x
  2. Step 2: Convert to fraction form
    8,070.39/12,098.31 = 3,136.61/x
  3. Step 3: Cross multiply
    8,070.39x = 12,098.31 × 3,136.61
  4. Step 4: Simplify right side
    8,070.39x = 37,947,619.64
  5. Step 5: Solve for x
    x = 37,947,619.64/8,070.39
  6. Step 6: Final answer
    x = 4,702.08

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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.