Home / 11,438.99-17,156.71-3,119.67

Finding the Fourth Proportional to 11,438.99, 17,156.71 and 3,119.67

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Solution

The fourth proportional to 11,438.99, 17,156.71 and 3,119.67 is: 4,679.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,438.99 : 17,156.71 = 3,119.67 : x
  2. Step 2: Convert to fraction form
    11,438.99/17,156.71 = 3,119.67/x
  3. Step 3: Cross multiply
    11,438.99x = 17,156.71 × 3,119.67
  4. Step 4: Simplify right side
    11,438.99x = 53,523,277.39
  5. Step 5: Solve for x
    x = 53,523,277.39/11,438.99
  6. Step 6: Final answer
    x = 4,679.02

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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.