Home / 8,117.07-12,181.08-3,186.13

Finding the Fourth Proportional to 8,117.07, 12,181.08 and 3,186.13

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Solution

The fourth proportional to 8,117.07, 12,181.08 and 3,186.13 is: 4,781.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,117.07 : 12,181.08 = 3,186.13 : x
  2. Step 2: Convert to fraction form
    8,117.07/12,181.08 = 3,186.13/x
  3. Step 3: Cross multiply
    8,117.07x = 12,181.08 × 3,186.13
  4. Step 4: Simplify right side
    8,117.07x = 38,810,504.42
  5. Step 5: Solve for x
    x = 38,810,504.42/8,117.07
  6. Step 6: Final answer
    x = 4,781.34

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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.