Home / 8,218.75-12,328.13-2,746.75

Finding the Fourth Proportional to 8,218.75, 12,328.13 and 2,746.75

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Solution

The fourth proportional to 8,218.75, 12,328.13 and 2,746.75 is: 4,120.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,218.75 : 12,328.13 = 2,746.75 : x
  2. Step 2: Convert to fraction form
    8,218.75/12,328.13 = 2,746.75/x
  3. Step 3: Cross multiply
    8,218.75x = 12,328.13 × 2,746.75
  4. Step 4: Simplify right side
    8,218.75x = 33,862,291.08
  5. Step 5: Solve for x
    x = 33,862,291.08/8,218.75
  6. Step 6: Final answer
    x = 4,120.13

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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.