Home / 11,137.36-15,362.76-8,615.44

Finding the Fourth Proportional to 11,137.36, 15,362.76 and 8,615.44

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Solution

The fourth proportional to 11,137.36, 15,362.76 and 8,615.44 is: 11,884.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,137.36 : 15,362.76 = 8,615.44 : x
  2. Step 2: Convert to fraction form
    11,137.36/15,362.76 = 8,615.44/x
  3. Step 3: Cross multiply
    11,137.36x = 15,362.76 × 8,615.44
  4. Step 4: Simplify right side
    11,137.36x = 132,356,937.01
  5. Step 5: Solve for x
    x = 132,356,937.01/11,137.36
  6. Step 6: Final answer
    x = 11,884.05

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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.