Home / 12,964.49-19,449.82-4,199.40

Finding the Fourth Proportional to 12,964.49, 19,449.82 and 4,199.40

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Solution

The fourth proportional to 12,964.49, 19,449.82 and 4,199.40 is: 6,300.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,964.49 : 19,449.82 = 4,199.40 : x
  2. Step 2: Convert to fraction form
    12,964.49/19,449.82 = 4,199.40/x
  3. Step 3: Cross multiply
    12,964.49x = 19,449.82 × 4,199.40
  4. Step 4: Simplify right side
    12,964.49x = 81,677,574.11
  5. Step 5: Solve for x
    x = 81,677,574.11/12,964.49
  6. Step 6: Final answer
    x = 6,300.10

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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.