Home / 18,690.45-28,035.78-5,542.92

Finding the Fourth Proportional to 18,690.45, 28,035.78 and 5,542.92

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Solution

The fourth proportional to 18,690.45, 28,035.78 and 5,542.92 is: 8,314.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,690.45 : 28,035.78 = 5,542.92 : x
  2. Step 2: Convert to fraction form
    18,690.45/28,035.78 = 5,542.92/x
  3. Step 3: Cross multiply
    18,690.45x = 28,035.78 × 5,542.92
  4. Step 4: Simplify right side
    18,690.45x = 155,400,085.68
  5. Step 5: Solve for x
    x = 155,400,085.68/18,690.45
  6. Step 6: Final answer
    x = 8,314.41

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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.