Home / 16,518.22-24,778.15-5,428.10

Finding the Fourth Proportional to 16,518.22, 24,778.15 and 5,428.10

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Solution

The fourth proportional to 16,518.22, 24,778.15 and 5,428.10 is: 8,142.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,518.22 : 24,778.15 = 5,428.10 : x
  2. Step 2: Convert to fraction form
    16,518.22/24,778.15 = 5,428.10/x
  3. Step 3: Cross multiply
    16,518.22x = 24,778.15 × 5,428.10
  4. Step 4: Simplify right side
    16,518.22x = 134,498,324.39
  5. Step 5: Solve for x
    x = 134,498,324.39/16,518.22
  6. Step 6: Final answer
    x = 8,142.42

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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.