Home / 11,279.72-15,564.56-6,243.23

Finding the Fourth Proportional to 11,279.72, 15,564.56 and 6,243.23

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Solution

The fourth proportional to 11,279.72, 15,564.56 and 6,243.23 is: 8,614.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,279.72 : 15,564.56 = 6,243.23 : x
  2. Step 2: Convert to fraction form
    11,279.72/15,564.56 = 6,243.23/x
  3. Step 3: Cross multiply
    11,279.72x = 15,564.56 × 6,243.23
  4. Step 4: Simplify right side
    11,279.72x = 97,173,135.62
  5. Step 5: Solve for x
    x = 97,173,135.62/11,279.72
  6. Step 6: Final answer
    x = 8,614.85

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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.