Home / 12,283.49-18,425.60-3,398.90

Finding the Fourth Proportional to 12,283.49, 18,425.60 and 3,398.90

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Solution

The fourth proportional to 12,283.49, 18,425.60 and 3,398.90 is: 5,098.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,283.49 : 18,425.60 = 3,398.90 : x
  2. Step 2: Convert to fraction form
    12,283.49/18,425.60 = 3,398.90/x
  3. Step 3: Cross multiply
    12,283.49x = 18,425.60 × 3,398.90
  4. Step 4: Simplify right side
    12,283.49x = 62,626,678.65
  5. Step 5: Solve for x
    x = 62,626,678.65/12,283.49
  6. Step 6: Final answer
    x = 5,098.44

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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.