Home / 18,782.21-28,187.60-6,947.18

Finding the Fourth Proportional to 18,782.21, 28,187.60 and 6,947.18

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Solution

The fourth proportional to 18,782.21, 28,187.60 and 6,947.18 is: 10,426.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,782.21 : 28,187.60 = 6,947.18 : x
  2. Step 2: Convert to fraction form
    18,782.21/28,187.60 = 6,947.18/x
  3. Step 3: Cross multiply
    18,782.21x = 28,187.60 × 6,947.18
  4. Step 4: Simplify right side
    18,782.21x = 195,824,366.70
  5. Step 5: Solve for x
    x = 195,824,366.70/18,782.21
  6. Step 6: Final answer
    x = 10,426.05

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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.