Home / 11,174.58-15,420.33-6,139.44

Finding the Fourth Proportional to 11,174.58, 15,420.33 and 6,139.44

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Solution

The fourth proportional to 11,174.58, 15,420.33 and 6,139.44 is: 8,472.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,174.58 : 15,420.33 = 6,139.44 : x
  2. Step 2: Convert to fraction form
    11,174.58/15,420.33 = 6,139.44/x
  3. Step 3: Cross multiply
    11,174.58x = 15,420.33 × 6,139.44
  4. Step 4: Simplify right side
    11,174.58x = 94,672,190.82
  5. Step 5: Solve for x
    x = 94,672,190.82/11,174.58
  6. Step 6: Final answer
    x = 8,472.10

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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.