Home / 11,291.13-15,581.72-6,255.36

Finding the Fourth Proportional to 11,291.13, 15,581.72 and 6,255.36

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Solution

The fourth proportional to 11,291.13, 15,581.72 and 6,255.36 is: 8,632.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,291.13 : 15,581.72 = 6,255.36 : x
  2. Step 2: Convert to fraction form
    11,291.13/15,581.72 = 6,255.36/x
  3. Step 3: Cross multiply
    11,291.13x = 15,581.72 × 6,255.36
  4. Step 4: Simplify right side
    11,291.13x = 97,469,190.11
  5. Step 5: Solve for x
    x = 97,469,190.11/11,291.13
  6. Step 6: Final answer
    x = 8,632.37

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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.