Home / 18,725.40-28,087.83-5,577.84

Finding the Fourth Proportional to 18,725.40, 28,087.83 and 5,577.84

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Solution

The fourth proportional to 18,725.40, 28,087.83 and 5,577.84 is: 8,366.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,725.40 : 28,087.83 = 5,577.84 : x
  2. Step 2: Convert to fraction form
    18,725.40/28,087.83 = 5,577.84/x
  3. Step 3: Cross multiply
    18,725.40x = 28,087.83 × 5,577.84
  4. Step 4: Simplify right side
    18,725.40x = 156,669,421.69
  5. Step 5: Solve for x
    x = 156,669,421.69/18,725.40
  6. Step 6: Final answer
    x = 8,366.68

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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.