Home / 12,800.13-19,184.55-5,778.33

Finding the Fourth Proportional to 12,800.13, 19,184.55 and 5,778.33

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Solution

The fourth proportional to 12,800.13, 19,184.55 and 5,778.33 is: 8,660.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,800.13 : 19,184.55 = 5,778.33 : x
  2. Step 2: Convert to fraction form
    12,800.13/19,184.55 = 5,778.33/x
  3. Step 3: Cross multiply
    12,800.13x = 19,184.55 × 5,778.33
  4. Step 4: Simplify right side
    12,800.13x = 110,854,660.80
  5. Step 5: Solve for x
    x = 110,854,660.80/12,800.13
  6. Step 6: Final answer
    x = 8,660.43

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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.