Home / 10,998.42-15,179.97-8,603.67

Finding the Fourth Proportional to 10,998.42, 15,179.97 and 8,603.67

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Solution

The fourth proportional to 10,998.42, 15,179.97 and 8,603.67 is: 11,874.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,998.42 : 15,179.97 = 8,603.67 : x
  2. Step 2: Convert to fraction form
    10,998.42/15,179.97 = 8,603.67/x
  3. Step 3: Cross multiply
    10,998.42x = 15,179.97 × 8,603.67
  4. Step 4: Simplify right side
    10,998.42x = 130,603,452.49
  5. Step 5: Solve for x
    x = 130,603,452.49/10,998.42
  6. Step 6: Final answer
    x = 11,874.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.