Home / 11,136.85-15,358.24-6,659.89

Finding the Fourth Proportional to 11,136.85, 15,358.24 and 6,659.89

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Solution

The fourth proportional to 11,136.85, 15,358.24 and 6,659.89 is: 9,184.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,136.85 : 15,358.24 = 6,659.89 : x
  2. Step 2: Convert to fraction form
    11,136.85/15,358.24 = 6,659.89/x
  3. Step 3: Cross multiply
    11,136.85x = 15,358.24 × 6,659.89
  4. Step 4: Simplify right side
    11,136.85x = 102,284,188.99
  5. Step 5: Solve for x
    x = 102,284,188.99/11,136.85
  6. Step 6: Final answer
    x = 9,184.30

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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.