Home / 12,308.97-18,461.84-3,424.89

Finding the Fourth Proportional to 12,308.97, 18,461.84 and 3,424.89

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Solution

The fourth proportional to 12,308.97, 18,461.84 and 3,424.89 is: 5,136.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,308.97 : 18,461.84 = 3,424.89 : x
  2. Step 2: Convert to fraction form
    12,308.97/18,461.84 = 3,424.89/x
  3. Step 3: Cross multiply
    12,308.97x = 18,461.84 × 3,424.89
  4. Step 4: Simplify right side
    12,308.97x = 63,229,754.07
  5. Step 5: Solve for x
    x = 63,229,754.07/12,308.97
  6. Step 6: Final answer
    x = 5,136.88

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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.