Home / 6,819.08-9,369.55-5,419.40

Finding the Fourth Proportional to 6,819.08, 9,369.55 and 5,419.40

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Solution

The fourth proportional to 6,819.08, 9,369.55 and 5,419.40 is: 7,446.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,819.08 : 9,369.55 = 5,419.40 : x
  2. Step 2: Convert to fraction form
    6,819.08/9,369.55 = 5,419.40/x
  3. Step 3: Cross multiply
    6,819.08x = 9,369.55 × 5,419.40
  4. Step 4: Simplify right side
    6,819.08x = 50,777,339.27
  5. Step 5: Solve for x
    x = 50,777,339.27/6,819.08
  6. Step 6: Final answer
    x = 7,446.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.