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Finding the Fourth Proportional to 7,503.94, 11,252.49 and 3,118.78

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Solution

The fourth proportional to 7,503.94, 11,252.49 and 3,118.78 is: 4,676.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,503.94 : 11,252.49 = 3,118.78 : x
  2. Step 2: Convert to fraction form
    7,503.94/11,252.49 = 3,118.78/x
  3. Step 3: Cross multiply
    7,503.94x = 11,252.49 × 3,118.78
  4. Step 4: Simplify right side
    7,503.94x = 35,094,040.76
  5. Step 5: Solve for x
    x = 35,094,040.76/7,503.94
  6. Step 6: Final answer
    x = 4,676.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.