Home / 12,746.14-19,091.60-7,800.82

Finding the Fourth Proportional to 12,746.14, 19,091.60 and 7,800.82

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Solution

The fourth proportional to 12,746.14, 19,091.60 and 7,800.82 is: 11,684.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,746.14 : 19,091.60 = 7,800.82 : x
  2. Step 2: Convert to fraction form
    12,746.14/19,091.60 = 7,800.82/x
  3. Step 3: Cross multiply
    12,746.14x = 19,091.60 × 7,800.82
  4. Step 4: Simplify right side
    12,746.14x = 148,930,135.11
  5. Step 5: Solve for x
    x = 148,930,135.11/12,746.14
  6. Step 6: Final answer
    x = 11,684.33

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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.