Home / 11,218.08-16,821.50-6,286.40

Finding the Fourth Proportional to 11,218.08, 16,821.50 and 6,286.40

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Solution

The fourth proportional to 11,218.08, 16,821.50 and 6,286.40 is: 9,426.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,218.08 : 16,821.50 = 6,286.40 : x
  2. Step 2: Convert to fraction form
    11,218.08/16,821.50 = 6,286.40/x
  3. Step 3: Cross multiply
    11,218.08x = 16,821.50 × 6,286.40
  4. Step 4: Simplify right side
    11,218.08x = 105,746,562.06
  5. Step 5: Solve for x
    x = 105,746,562.06/11,218.08
  6. Step 6: Final answer
    x = 9,426.44

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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.