Home / 12,311.60-18,460.10-4,919.54

Finding the Fourth Proportional to 12,311.60, 18,460.10 and 4,919.54

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Solution

The fourth proportional to 12,311.60, 18,460.10 and 4,919.54 is: 7,376.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,311.60 : 18,460.10 = 4,919.54 : x
  2. Step 2: Convert to fraction form
    12,311.60/18,460.10 = 4,919.54/x
  3. Step 3: Cross multiply
    12,311.60x = 18,460.10 × 4,919.54
  4. Step 4: Simplify right side
    12,311.60x = 90,815,120.35
  5. Step 5: Solve for x
    x = 90,815,120.35/12,311.60
  6. Step 6: Final answer
    x = 7,376.39

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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.