Home / 11,136.72-15,367.56-6,659.58

Finding the Fourth Proportional to 11,136.72, 15,367.56 and 6,659.58

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Solution

The fourth proportional to 11,136.72, 15,367.56 and 6,659.58 is: 9,189.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,136.72 : 15,367.56 = 6,659.58 : x
  2. Step 2: Convert to fraction form
    11,136.72/15,367.56 = 6,659.58/x
  3. Step 3: Cross multiply
    11,136.72x = 15,367.56 × 6,659.58
  4. Step 4: Simplify right side
    11,136.72x = 102,341,495.22
  5. Step 5: Solve for x
    x = 102,341,495.22/11,136.72
  6. Step 6: Final answer
    x = 9,189.55

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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.