Home / 12,869.49-19,296.60-3,982.19

Finding the Fourth Proportional to 12,869.49, 19,296.60 and 3,982.19

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Solution

The fourth proportional to 12,869.49, 19,296.60 and 3,982.19 is: 5,970.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,869.49 : 19,296.60 = 3,982.19 : x
  2. Step 2: Convert to fraction form
    12,869.49/19,296.60 = 3,982.19/x
  3. Step 3: Cross multiply
    12,869.49x = 19,296.60 × 3,982.19
  4. Step 4: Simplify right side
    12,869.49x = 76,842,632.94
  5. Step 5: Solve for x
    x = 76,842,632.94/12,869.49
  6. Step 6: Final answer
    x = 5,970.92

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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.