Home / 12,982.32-19,473.47-3,121.59

Finding the Fourth Proportional to 12,982.32, 19,473.47 and 3,121.59

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Solution

The fourth proportional to 12,982.32, 19,473.47 and 3,121.59 is: 4,682.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,982.32 : 19,473.47 = 3,121.59 : x
  2. Step 2: Convert to fraction form
    12,982.32/19,473.47 = 3,121.59/x
  3. Step 3: Cross multiply
    12,982.32x = 19,473.47 × 3,121.59
  4. Step 4: Simplify right side
    12,982.32x = 60,788,173.61
  5. Step 5: Solve for x
    x = 60,788,173.61/12,982.32
  6. Step 6: Final answer
    x = 4,682.38

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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.