Home / 12,808.83-19,221.90-4,488.93

Finding the Fourth Proportional to 12,808.83, 19,221.90 and 4,488.93

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Solution

The fourth proportional to 12,808.83, 19,221.90 and 4,488.93 is: 6,736.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,808.83 : 19,221.90 = 4,488.93 : x
  2. Step 2: Convert to fraction form
    12,808.83/19,221.90 = 4,488.93/x
  3. Step 3: Cross multiply
    12,808.83x = 19,221.90 × 4,488.93
  4. Step 4: Simplify right side
    12,808.83x = 86,285,763.57
  5. Step 5: Solve for x
    x = 86,285,763.57/12,808.83
  6. Step 6: Final answer
    x = 6,736.43

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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.