Home / 12,860.05-19,291.50-4,092.93

Finding the Fourth Proportional to 12,860.05, 19,291.50 and 4,092.93

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Solution

The fourth proportional to 12,860.05, 19,291.50 and 4,092.93 is: 6,139.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,860.05 : 19,291.50 = 4,092.93 : x
  2. Step 2: Convert to fraction form
    12,860.05/19,291.50 = 4,092.93/x
  3. Step 3: Cross multiply
    12,860.05x = 19,291.50 × 4,092.93
  4. Step 4: Simplify right side
    12,860.05x = 78,958,759.10
  5. Step 5: Solve for x
    x = 78,958,759.10/12,860.05
  6. Step 6: Final answer
    x = 6,139.85

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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.