Home / 8,185.13-12,277.99-2,638.55

Finding the Fourth Proportional to 8,185.13, 12,277.99 and 2,638.55

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Solution

The fourth proportional to 8,185.13, 12,277.99 and 2,638.55 is: 3,957.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,185.13 : 12,277.99 = 2,638.55 : x
  2. Step 2: Convert to fraction form
    8,185.13/12,277.99 = 2,638.55/x
  3. Step 3: Cross multiply
    8,185.13x = 12,277.99 × 2,638.55
  4. Step 4: Simplify right side
    8,185.13x = 32,396,090.51
  5. Step 5: Solve for x
    x = 32,396,090.51/8,185.13
  6. Step 6: Final answer
    x = 3,957.92

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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.