Home / 11,731.62-16,189.20-6,426.48

Finding the Fourth Proportional to 11,731.62, 16,189.20 and 6,426.48

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Solution

The fourth proportional to 11,731.62, 16,189.20 and 6,426.48 is: 8,868.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,731.62 : 16,189.20 = 6,426.48 : x
  2. Step 2: Convert to fraction form
    11,731.62/16,189.20 = 6,426.48/x
  3. Step 3: Cross multiply
    11,731.62x = 16,189.20 × 6,426.48
  4. Step 4: Simplify right side
    11,731.62x = 104,039,570.02
  5. Step 5: Solve for x
    x = 104,039,570.02/11,731.62
  6. Step 6: Final answer
    x = 8,868.30

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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.