Home / 11,133.12-15,375.36-7,605.44

Finding the Fourth Proportional to 11,133.12, 15,375.36 and 7,605.44

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Solution

The fourth proportional to 11,133.12, 15,375.36 and 7,605.44 is: 10,503.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,133.12 : 15,375.36 = 7,605.44 : x
  2. Step 2: Convert to fraction form
    11,133.12/15,375.36 = 7,605.44/x
  3. Step 3: Cross multiply
    11,133.12x = 15,375.36 × 7,605.44
  4. Step 4: Simplify right side
    11,133.12x = 116,936,377.96
  5. Step 5: Solve for x
    x = 116,936,377.96/11,133.12
  6. Step 6: Final answer
    x = 10,503.47

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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.