Home / 12,780.36-19,168.92-4,994.64

Finding the Fourth Proportional to 12,780.36, 19,168.92 and 4,994.64

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Solution

The fourth proportional to 12,780.36, 19,168.92 and 4,994.64 is: 7,491.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,780.36 : 19,168.92 = 4,994.64 : x
  2. Step 2: Convert to fraction form
    12,780.36/19,168.92 = 4,994.64/x
  3. Step 3: Cross multiply
    12,780.36x = 19,168.92 × 4,994.64
  4. Step 4: Simplify right side
    12,780.36x = 95,741,854.59
  5. Step 5: Solve for x
    x = 95,741,854.59/12,780.36
  6. Step 6: Final answer
    x = 7,491.33

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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.