Home / 8,399.68-11,590.93-4,622.78

Finding the Fourth Proportional to 8,399.68, 11,590.93 and 4,622.78

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Solution

The fourth proportional to 8,399.68, 11,590.93 and 4,622.78 is: 6,379.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,399.68 : 11,590.93 = 4,622.78 : x
  2. Step 2: Convert to fraction form
    8,399.68/11,590.93 = 4,622.78/x
  3. Step 3: Cross multiply
    8,399.68x = 11,590.93 × 4,622.78
  4. Step 4: Simplify right side
    8,399.68x = 53,582,319.39
  5. Step 5: Solve for x
    x = 53,582,319.39/8,399.68
  6. Step 6: Final answer
    x = 6,379.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.