Home / 18,972.97-28,453.30-6,319.35

Finding the Fourth Proportional to 18,972.97, 28,453.30 and 6,319.35

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Solution

The fourth proportional to 18,972.97, 28,453.30 and 6,319.35 is: 9,476.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,972.97 : 28,453.30 = 6,319.35 : x
  2. Step 2: Convert to fraction form
    18,972.97/28,453.30 = 6,319.35/x
  3. Step 3: Cross multiply
    18,972.97x = 28,453.30 × 6,319.35
  4. Step 4: Simplify right side
    18,972.97x = 179,806,361.36
  5. Step 5: Solve for x
    x = 179,806,361.36/18,972.97
  6. Step 6: Final answer
    x = 9,476.97

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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.