Home / 18,771.84-28,156.68-5,624.46

Finding the Fourth Proportional to 18,771.84, 28,156.68 and 5,624.46

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Solution

The fourth proportional to 18,771.84, 28,156.68 and 5,624.46 is: 8,436.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,771.84 : 28,156.68 = 5,624.46 : x
  2. Step 2: Convert to fraction form
    18,771.84/28,156.68 = 5,624.46/x
  3. Step 3: Cross multiply
    18,771.84x = 28,156.68 × 5,624.46
  4. Step 4: Simplify right side
    18,771.84x = 158,366,120.39
  5. Step 5: Solve for x
    x = 158,366,120.39/18,771.84
  6. Step 6: Final answer
    x = 8,436.37

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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.