Home / 11,136.86-15,358.26-6,659.88

Finding the Fourth Proportional to 11,136.86, 15,358.26 and 6,659.88

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Solution

The fourth proportional to 11,136.86, 15,358.26 and 6,659.88 is: 9,184.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,136.86 : 15,358.26 = 6,659.88 : x
  2. Step 2: Convert to fraction form
    11,136.86/15,358.26 = 6,659.88/x
  3. Step 3: Cross multiply
    11,136.86x = 15,358.26 × 6,659.88
  4. Step 4: Simplify right side
    11,136.86x = 102,284,168.61
  5. Step 5: Solve for x
    x = 102,284,168.61/11,136.86
  6. Step 6: Final answer
    x = 9,184.29

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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.