Home / 12,672.14-19,013.57-6,821.91

Finding the Fourth Proportional to 12,672.14, 19,013.57 and 6,821.91

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Solution

The fourth proportional to 12,672.14, 19,013.57 and 6,821.91 is: 10,235.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,672.14 : 19,013.57 = 6,821.91 : x
  2. Step 2: Convert to fraction form
    12,672.14/19,013.57 = 6,821.91/x
  3. Step 3: Cross multiply
    12,672.14x = 19,013.57 × 6,821.91
  4. Step 4: Simplify right side
    12,672.14x = 129,708,829.21
  5. Step 5: Solve for x
    x = 129,708,829.21/12,672.14
  6. Step 6: Final answer
    x = 10,235.75

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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.