Home / 8,085.26-12,122.52-3,155.36

Finding the Fourth Proportional to 8,085.26, 12,122.52 and 3,155.36

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Solution

The fourth proportional to 8,085.26, 12,122.52 and 3,155.36 is: 4,730.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,085.26 : 12,122.52 = 3,155.36 : x
  2. Step 2: Convert to fraction form
    8,085.26/12,122.52 = 3,155.36/x
  3. Step 3: Cross multiply
    8,085.26x = 12,122.52 × 3,155.36
  4. Step 4: Simplify right side
    8,085.26x = 38,250,914.71
  5. Step 5: Solve for x
    x = 38,250,914.71/8,085.26
  6. Step 6: Final answer
    x = 4,730.94

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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.