Home / 18,678.62-28,020.63-5,529.26

Finding the Fourth Proportional to 18,678.62, 28,020.63 and 5,529.26

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Solution

The fourth proportional to 18,678.62, 28,020.63 and 5,529.26 is: 8,294.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,678.62 : 28,020.63 = 5,529.26 : x
  2. Step 2: Convert to fraction form
    18,678.62/28,020.63 = 5,529.26/x
  3. Step 3: Cross multiply
    18,678.62x = 28,020.63 × 5,529.26
  4. Step 4: Simplify right side
    18,678.62x = 154,933,348.63
  5. Step 5: Solve for x
    x = 154,933,348.63/18,678.62
  6. Step 6: Final answer
    x = 8,294.69

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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.