Home / 11,087.20-16,627.20-3,690.40

Finding the Fourth Proportional to 11,087.20, 16,627.20 and 3,690.40

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Solution

The fourth proportional to 11,087.20, 16,627.20 and 3,690.40 is: 5,534.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,087.20 : 16,627.20 = 3,690.40 : x
  2. Step 2: Convert to fraction form
    11,087.20/16,627.20 = 3,690.40/x
  3. Step 3: Cross multiply
    11,087.20x = 16,627.20 × 3,690.40
  4. Step 4: Simplify right side
    11,087.20x = 61,361,018.88
  5. Step 5: Solve for x
    x = 61,361,018.88/11,087.20
  6. Step 6: Final answer
    x = 5,534.40

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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.