Home / 11,185.20-15,434.67-6,149.29

Finding the Fourth Proportional to 11,185.20, 15,434.67 and 6,149.29

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Solution

The fourth proportional to 11,185.20, 15,434.67 and 6,149.29 is: 8,485.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,185.20 : 15,434.67 = 6,149.29 : x
  2. Step 2: Convert to fraction form
    11,185.20/15,434.67 = 6,149.29/x
  3. Step 3: Cross multiply
    11,185.20x = 15,434.67 × 6,149.29
  4. Step 4: Simplify right side
    11,185.20x = 94,912,261.88
  5. Step 5: Solve for x
    x = 94,912,261.88/11,185.20
  6. Step 6: Final answer
    x = 8,485.52

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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.