Home / 6,416.94-9,612.78-4,218.96

Finding the Fourth Proportional to 6,416.94, 9,612.78 and 4,218.96

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Solution

The fourth proportional to 6,416.94, 9,612.78 and 4,218.96 is: 6,320.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,416.94 : 9,612.78 = 4,218.96 : x
  2. Step 2: Convert to fraction form
    6,416.94/9,612.78 = 4,218.96/x
  3. Step 3: Cross multiply
    6,416.94x = 9,612.78 × 4,218.96
  4. Step 4: Simplify right side
    6,416.94x = 40,555,934.31
  5. Step 5: Solve for x
    x = 40,555,934.31/6,416.94
  6. Step 6: Final answer
    x = 6,320.14

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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.