Home / 12,776.93-19,163.21-4,009.79

Finding the Fourth Proportional to 12,776.93, 19,163.21 and 4,009.79

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Solution

The fourth proportional to 12,776.93, 19,163.21 and 4,009.79 is: 6,013.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,776.93 : 19,163.21 = 4,009.79 : x
  2. Step 2: Convert to fraction form
    12,776.93/19,163.21 = 4,009.79/x
  3. Step 3: Cross multiply
    12,776.93x = 19,163.21 × 4,009.79
  4. Step 4: Simplify right side
    12,776.93x = 76,840,331.96
  5. Step 5: Solve for x
    x = 76,840,331.96/12,776.93
  6. Step 6: Final answer
    x = 6,013.99

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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.