Home / 7,419.50-11,120.60-4,499.72

Finding the Fourth Proportional to 7,419.50, 11,120.60 and 4,499.72

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Solution

The fourth proportional to 7,419.50, 11,120.60 and 4,499.72 is: 6,744.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,419.50 : 11,120.60 = 4,499.72 : x
  2. Step 2: Convert to fraction form
    7,419.50/11,120.60 = 4,499.72/x
  3. Step 3: Cross multiply
    7,419.50x = 11,120.60 × 4,499.72
  4. Step 4: Simplify right side
    7,419.50x = 50,039,508.13
  5. Step 5: Solve for x
    x = 50,039,508.13/7,419.50
  6. Step 6: Final answer
    x = 6,744.33

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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.