Home / 11,147.45-15,383.21-6,301.76

Finding the Fourth Proportional to 11,147.45, 15,383.21 and 6,301.76

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Solution

The fourth proportional to 11,147.45, 15,383.21 and 6,301.76 is: 8,696.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,147.45 : 15,383.21 = 6,301.76 : x
  2. Step 2: Convert to fraction form
    11,147.45/15,383.21 = 6,301.76/x
  3. Step 3: Cross multiply
    11,147.45x = 15,383.21 × 6,301.76
  4. Step 4: Simplify right side
    11,147.45x = 96,941,189.02
  5. Step 5: Solve for x
    x = 96,941,189.02/11,147.45
  6. Step 6: Final answer
    x = 8,696.27

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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.