Home / 6,418.87-9,624.15-4,220.94

Finding the Fourth Proportional to 6,418.87, 9,624.15 and 4,220.94

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Solution

The fourth proportional to 6,418.87, 9,624.15 and 4,220.94 is: 6,328.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,418.87 : 9,624.15 = 4,220.94 : x
  2. Step 2: Convert to fraction form
    6,418.87/9,624.15 = 4,220.94/x
  3. Step 3: Cross multiply
    6,418.87x = 9,624.15 × 4,220.94
  4. Step 4: Simplify right side
    6,418.87x = 40,622,959.70
  5. Step 5: Solve for x
    x = 40,622,959.70/6,418.87
  6. Step 6: Final answer
    x = 6,328.68

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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.