Home / 12,799.12-19,197.10-3,439.84

Finding the Fourth Proportional to 12,799.12, 19,197.10 and 3,439.84

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Solution

The fourth proportional to 12,799.12, 19,197.10 and 3,439.84 is: 5,159.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,799.12 : 19,197.10 = 3,439.84 : x
  2. Step 2: Convert to fraction form
    12,799.12/19,197.10 = 3,439.84/x
  3. Step 3: Cross multiply
    12,799.12x = 19,197.10 × 3,439.84
  4. Step 4: Simplify right side
    12,799.12x = 66,034,952.46
  5. Step 5: Solve for x
    x = 66,034,952.46/12,799.12
  6. Step 6: Final answer
    x = 5,159.34

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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.