Home / 8,400.14-11,591.74-4,622.57

Finding the Fourth Proportional to 8,400.14, 11,591.74 and 4,622.57

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Solution

The fourth proportional to 8,400.14, 11,591.74 and 4,622.57 is: 6,378.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,400.14 : 11,591.74 = 4,622.57 : x
  2. Step 2: Convert to fraction form
    8,400.14/11,591.74 = 4,622.57/x
  3. Step 3: Cross multiply
    8,400.14x = 11,591.74 × 4,622.57
  4. Step 4: Simplify right side
    8,400.14x = 53,583,620.86
  5. Step 5: Solve for x
    x = 53,583,620.86/8,400.14
  6. Step 6: Final answer
    x = 6,378.90

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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.