Home / 11,218.40-16,827.60-3,426.20

Finding the Fourth Proportional to 11,218.40, 16,827.60 and 3,426.20

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Solution

The fourth proportional to 11,218.40, 16,827.60 and 3,426.20 is: 5,139.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,218.40 : 16,827.60 = 3,426.20 : x
  2. Step 2: Convert to fraction form
    11,218.40/16,827.60 = 3,426.20/x
  3. Step 3: Cross multiply
    11,218.40x = 16,827.60 × 3,426.20
  4. Step 4: Simplify right side
    11,218.40x = 57,654,723.12
  5. Step 5: Solve for x
    x = 57,654,723.12/11,218.40
  6. Step 6: Final answer
    x = 5,139.30

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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.