Home / 12,086.12-16,679.14-6,781.08

Finding the Fourth Proportional to 12,086.12, 16,679.14 and 6,781.08

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Solution

The fourth proportional to 12,086.12, 16,679.14 and 6,781.08 is: 9,358.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,086.12 : 16,679.14 = 6,781.08 : x
  2. Step 2: Convert to fraction form
    12,086.12/16,679.14 = 6,781.08/x
  3. Step 3: Cross multiply
    12,086.12x = 16,679.14 × 6,781.08
  4. Step 4: Simplify right side
    12,086.12x = 113,102,582.67
  5. Step 5: Solve for x
    x = 113,102,582.67/12,086.12
  6. Step 6: Final answer
    x = 9,358.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.