Home / 15,411.92-21,268.44-8,338.37

Finding the Fourth Proportional to 15,411.92, 21,268.44 and 8,338.37

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Solution

The fourth proportional to 15,411.92, 21,268.44 and 8,338.37 is: 11,506.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,411.92 : 21,268.44 = 8,338.37 : x
  2. Step 2: Convert to fraction form
    15,411.92/21,268.44 = 8,338.37/x
  3. Step 3: Cross multiply
    15,411.92x = 21,268.44 × 8,338.37
  4. Step 4: Simplify right side
    15,411.92x = 177,344,015.70
  5. Step 5: Solve for x
    x = 177,344,015.70/15,411.92
  6. Step 6: Final answer
    x = 11,506.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.