Home / 10,998.45-16,503.14-5,155.52

Finding the Fourth Proportional to 10,998.45, 16,503.14 and 5,155.52

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Solution

The fourth proportional to 10,998.45, 16,503.14 and 5,155.52 is: 7,735.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,998.45 : 16,503.14 = 5,155.52 : x
  2. Step 2: Convert to fraction form
    10,998.45/16,503.14 = 5,155.52/x
  3. Step 3: Cross multiply
    10,998.45x = 16,503.14 × 5,155.52
  4. Step 4: Simplify right side
    10,998.45x = 85,082,198.71
  5. Step 5: Solve for x
    x = 85,082,198.71/10,998.45
  6. Step 6: Final answer
    x = 7,735.84

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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.