Home / 12,808.68-19,212.84-4,486.38

Finding the Fourth Proportional to 12,808.68, 19,212.84 and 4,486.38

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Solution

The fourth proportional to 12,808.68, 19,212.84 and 4,486.38 is: 6,729.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,808.68 : 19,212.84 = 4,486.38 : x
  2. Step 2: Convert to fraction form
    12,808.68/19,212.84 = 4,486.38/x
  3. Step 3: Cross multiply
    12,808.68x = 19,212.84 × 4,486.38
  4. Step 4: Simplify right side
    12,808.68x = 86,196,101.12
  5. Step 5: Solve for x
    x = 86,196,101.12/12,808.68
  6. Step 6: Final answer
    x = 6,729.51

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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.