Home / 18,703.04-28,054.56-6,857.36

Finding the Fourth Proportional to 18,703.04, 28,054.56 and 6,857.36

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Solution

The fourth proportional to 18,703.04, 28,054.56 and 6,857.36 is: 10,286.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,703.04 : 28,054.56 = 6,857.36 : x
  2. Step 2: Convert to fraction form
    18,703.04/28,054.56 = 6,857.36/x
  3. Step 3: Cross multiply
    18,703.04x = 28,054.56 × 6,857.36
  4. Step 4: Simplify right side
    18,703.04x = 192,380,217.56
  5. Step 5: Solve for x
    x = 192,380,217.56/18,703.04
  6. Step 6: Final answer
    x = 10,286.04

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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.