Home / 12,544.20-17,311.14-6,878.79

Finding the Fourth Proportional to 12,544.20, 17,311.14 and 6,878.79

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Solution

The fourth proportional to 12,544.20, 17,311.14 and 6,878.79 is: 9,492.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,544.20 : 17,311.14 = 6,878.79 : x
  2. Step 2: Convert to fraction form
    12,544.20/17,311.14 = 6,878.79/x
  3. Step 3: Cross multiply
    12,544.20x = 17,311.14 × 6,878.79
  4. Step 4: Simplify right side
    12,544.20x = 119,079,696.72
  5. Step 5: Solve for x
    x = 119,079,696.72/12,544.20
  6. Step 6: Final answer
    x = 9,492.81

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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.