Home / 7,418.40-11,125.20-2,486.76

Finding the Fourth Proportional to 7,418.40, 11,125.20 and 2,486.76

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Solution

The fourth proportional to 7,418.40, 11,125.20 and 2,486.76 is: 3,729.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,418.40 : 11,125.20 = 2,486.76 : x
  2. Step 2: Convert to fraction form
    7,418.40/11,125.20 = 2,486.76/x
  3. Step 3: Cross multiply
    7,418.40x = 11,125.20 × 2,486.76
  4. Step 4: Simplify right side
    7,418.40x = 27,665,702.35
  5. Step 5: Solve for x
    x = 27,665,702.35/7,418.40
  6. Step 6: Final answer
    x = 3,729.34

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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.