Home / 11,153.26-15,390.96-6,679.48

Finding the Fourth Proportional to 11,153.26, 15,390.96 and 6,679.48

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Solution

The fourth proportional to 11,153.26, 15,390.96 and 6,679.48 is: 9,217.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,153.26 : 15,390.96 = 6,679.48 : x
  2. Step 2: Convert to fraction form
    11,153.26/15,390.96 = 6,679.48/x
  3. Step 3: Cross multiply
    11,153.26x = 15,390.96 × 6,679.48
  4. Step 4: Simplify right side
    11,153.26x = 102,803,609.50
  5. Step 5: Solve for x
    x = 102,803,609.50/11,153.26
  6. Step 6: Final answer
    x = 9,217.36

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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.