Home / 12,982.41-19,455.39-5,581.31

Finding the Fourth Proportional to 12,982.41, 19,455.39 and 5,581.31

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Solution

The fourth proportional to 12,982.41, 19,455.39 and 5,581.31 is: 8,364.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,982.41 : 19,455.39 = 5,581.31 : x
  2. Step 2: Convert to fraction form
    12,982.41/19,455.39 = 5,581.31/x
  3. Step 3: Cross multiply
    12,982.41x = 19,455.39 × 5,581.31
  4. Step 4: Simplify right side
    12,982.41x = 108,586,465.48
  5. Step 5: Solve for x
    x = 108,586,465.48/12,982.41
  6. Step 6: Final answer
    x = 8,364.12

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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.