Home / 12,808.49-19,212.48-4,488.30

Finding the Fourth Proportional to 12,808.49, 19,212.48 and 4,488.30

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Solution

The fourth proportional to 12,808.49, 19,212.48 and 4,488.30 is: 6,732.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,808.49 : 19,212.48 = 4,488.30 : x
  2. Step 2: Convert to fraction form
    12,808.49/19,212.48 = 4,488.30/x
  3. Step 3: Cross multiply
    12,808.49x = 19,212.48 × 4,488.30
  4. Step 4: Simplify right side
    12,808.49x = 86,231,373.98
  5. Step 5: Solve for x
    x = 86,231,373.98/12,808.49
  6. Step 6: Final answer
    x = 6,732.36

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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.